# CVE-2026-92240: Out-of-bounds read in IMAP response parser CVE-2026-92240 is fixed in 135 products on 3 platforms, first by Mozilla Thunderbird 156.0, released September 10, 2026. It is not reported as exploited. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/cve/CVE-2026-92240 - Priority: Urgent - CVSS: 9.1 (critical) - EPSS: 0.0063 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Sep 15, 2026 - Weakness: CWE-125: Out-of-bounds Read - Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-92240 ## Description A malicious or compromised IMAP server can trigger an out-of-bounds read in the IMAP response parser by sending an untagged '* ID' response, crashing Thunderbird. The affected parsing path is reachable before authentication. This vulnerability was fixed in Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Windows apps | Mozilla Thunderbird (af) | 156.0 | [Mozilla Thunderbird (af) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.af-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (ar) | 156.0 | [Mozilla Thunderbird (ar) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ar-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (ast) | 156.0 | [Mozilla Thunderbird (ast) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ast-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (be) | 156.0 | [Mozilla Thunderbird (be) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.be-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (bg) | 156.0 | [Mozilla Thunderbird (bg) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.bg-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (br) | 156.0 | [Mozilla Thunderbird (br) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.br-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (ca) | 156.0 | [Mozilla Thunderbird (ca) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ca-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (cak) | 156.0 | [Mozilla Thunderbird (cak) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cak-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (cs) | 156.0 | [Mozilla Thunderbird (cs) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cs-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (cy) | 156.0 | [Mozilla Thunderbird (cy) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cy-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (da) | 156.0 | [Mozilla Thunderbird (da) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.da-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (de) | 156.0 | [Mozilla Thunderbird (de) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.de-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (dsb) | 156.0 | [Mozilla Thunderbird (dsb) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.dsb-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (el) | 156.0 | [Mozilla Thunderbird (el) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.el-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (en-CA) | 156.0 | [Mozilla Thunderbird (en-CA) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-ca-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (en-GB) | 156.0 | [Mozilla Thunderbird (en-GB) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-gb-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (en-US) | 156.0 | [Mozilla Thunderbird (en-US) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (es-AR) | 156.0 | [Mozilla Thunderbird (es-AR) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-ar-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (es-ES) | 156.0 | [Mozilla Thunderbird (es-ES) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-es-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (es-MX) | 156.0 | [Mozilla Thunderbird (es-MX) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-mx-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (et) | 156.0 | [Mozilla Thunderbird (et) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.et-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (eu) | 156.0 | [Mozilla Thunderbird (eu) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.eu-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (fi) | 156.0 | [Mozilla Thunderbird (fi) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fi-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (fr) | 156.0 | [Mozilla Thunderbird (fr) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fr-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (fy-NL) | 156.0 | [Mozilla Thunderbird (fy-NL) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fy-nl-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (ga-IE) | 156.0 | [Mozilla Thunderbird (ga-IE) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ga-ie-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (gd) | 156.0 | [Mozilla Thunderbird (gd) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gd-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (gl) | 156.0 | [Mozilla Thunderbird (gl) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gl-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (he) | 156.0 | [Mozilla Thunderbird (he) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.he-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (hr) | 156.0 | [Mozilla Thunderbird (hr) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hr-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (hsb) | 156.0 | [Mozilla Thunderbird (hsb) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hsb-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (hu) | 156.0 | [Mozilla Thunderbird (hu) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hu-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (hy-AM) | 156.0 | [Mozilla Thunderbird (hy-AM) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hy-am-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (id) | 156.0 | [Mozilla Thunderbird (id) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.id-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (is) | 156.0 | [Mozilla Thunderbird (is) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.is-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (it) | 156.0 | [Mozilla Thunderbird (it) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.it-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (ja) | 156.0 | [Mozilla Thunderbird (ja) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ja-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (ka) | 156.0 | [Mozilla Thunderbird (ka) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ka-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (kab) | 156.0 | [Mozilla Thunderbird (kab) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kab-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (kk) | 156.0 | [Mozilla Thunderbird (kk) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kk-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (ko) | 156.0 | [Mozilla Thunderbird (ko) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ko-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (lt) | 156.0 | [Mozilla Thunderbird (lt) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lt-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (lv) | 156.0 | [Mozilla Thunderbird (lv) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lv-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (ms) | 156.0 | [Mozilla Thunderbird (ms) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ms-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (nb-NO) | 156.0 | [Mozilla Thunderbird (nb-NO) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nb-no-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (nl) | 156.0 | [Mozilla Thunderbird (nl) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nl-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (nn-NO) | 156.0 | [Mozilla Thunderbird (nn-NO) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nn-no-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (pa-IN) | 156.0 | [Mozilla Thunderbird (pa-IN) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pa-in-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (pl) | 156.0 | [Mozilla Thunderbird (pl) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pl-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (pt-BR) | 156.0 | [Mozilla Thunderbird (pt-BR) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-br-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (pt-PT) | 156.0 | [Mozilla Thunderbird (pt-PT) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-pt-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (rm) | 156.0 | [Mozilla Thunderbird (rm) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.rm-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (ro) | 156.0 | [Mozilla Thunderbird (ro) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ro-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (ru) | 156.0 | [Mozilla Thunderbird (ru) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ru-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (sk) | 156.0 | [Mozilla Thunderbird (sk) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sk-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (sl) | 156.0 | [Mozilla Thunderbird (sl) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sl-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (sq) | 156.0 | [Mozilla Thunderbird (sq) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sq-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (sr) | 156.0 | [Mozilla Thunderbird (sr) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sr-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (sv-SE) | 156.0 | [Mozilla Thunderbird (sv-SE) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sv-se-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (th) | 156.0 | [Mozilla Thunderbird (th) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.th-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (tr) | 156.0 | [Mozilla Thunderbird (tr) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.tr-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (uk) | 156.0 | [Mozilla Thunderbird (uk) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uk-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (uz) | 156.0 | [Mozilla Thunderbird (uz) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uz-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (vi) | 156.0 | [Mozilla Thunderbird (vi) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.vi-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (zh-CN) | 156.0 | [Mozilla Thunderbird (zh-CN) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-cn-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird (zh-TW) | 156.0 | [Mozilla Thunderbird (zh-TW) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-tw-156.0.md) | Sep 15, 2026 | | Windows apps | Mozilla Thunderbird ESR (af) | 153.3.0 | [Mozilla Thunderbird ESR (af) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.af-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (ar) | 153.3.0 | [Mozilla Thunderbird ESR (ar) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ar-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (ast) | 153.3.0 | [Mozilla Thunderbird ESR (ast) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ast-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (be) | 153.3.0 | [Mozilla Thunderbird ESR (be) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.be-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (bg) | 153.3.0 | [Mozilla Thunderbird ESR (bg) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.bg-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (br) | 153.3.0 | [Mozilla Thunderbird ESR (br) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.br-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (ca) | 153.3.0 | [Mozilla Thunderbird ESR (ca) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ca-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (cak) | 153.3.0 | [Mozilla Thunderbird ESR (cak) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cak-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (cs) | 153.3.0 | [Mozilla Thunderbird ESR (cs) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cs-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (cy) | 153.3.0 | [Mozilla Thunderbird ESR (cy) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cy-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (da) | 153.3.0 | [Mozilla Thunderbird ESR (da) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.da-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (de) | 153.3.0 | [Mozilla Thunderbird ESR (de) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.de-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (dsb) | 153.3.0 | [Mozilla Thunderbird ESR (dsb) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.dsb-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (el) | 153.3.0 | [Mozilla Thunderbird ESR (el) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.el-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (en-CA) | 153.3.0 | [Mozilla Thunderbird ESR (en-CA) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.en-ca-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (en-GB) | 153.3.0 | [Mozilla Thunderbird ESR (en-GB) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.en-gb-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (en-US) | 153.3.0 | [Mozilla Thunderbird ESR (en-US) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (es-AR) | 153.3.0 | [Mozilla Thunderbird ESR (es-AR) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-ar-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (es-ES) | 153.3.0 | [Mozilla Thunderbird ESR (es-ES) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-es-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (es-MX) | 153.3.0 | [Mozilla Thunderbird ESR (es-MX) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-mx-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (et) | 153.3.0 | [Mozilla Thunderbird ESR (et) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.et-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (eu) | 153.3.0 | [Mozilla Thunderbird ESR (eu) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.eu-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (fi) | 153.3.0 | [Mozilla Thunderbird ESR (fi) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fi-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (fr) | 153.3.0 | [Mozilla Thunderbird ESR (fr) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fr-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (fy-NL) | 153.3.0 | [Mozilla Thunderbird ESR (fy-NL) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fy-nl-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (ga-IE) | 153.3.0 | [Mozilla Thunderbird ESR (ga-IE) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ga-ie-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (gd) | 153.3.0 | [Mozilla Thunderbird ESR (gd) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.gd-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (gl) | 153.3.0 | [Mozilla Thunderbird ESR (gl) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.gl-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (he) | 153.3.0 | [Mozilla Thunderbird ESR (he) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.he-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (hr) | 153.3.0 | [Mozilla Thunderbird ESR (hr) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hr-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (hsb) | 153.3.0 | [Mozilla Thunderbird ESR (hsb) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hsb-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (hu) | 153.3.0 | [Mozilla Thunderbird ESR (hu) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hu-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (hy-AM) | 153.3.0 | [Mozilla Thunderbird ESR (hy-AM) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hy-am-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (id) | 153.3.0 | [Mozilla Thunderbird ESR (id) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.id-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (is) | 153.3.0 | [Mozilla Thunderbird ESR (is) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.is-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (it) | 153.3.0 | [Mozilla Thunderbird ESR (it) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.it-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (ja) | 153.3.0 | [Mozilla Thunderbird ESR (ja) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ja-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (ka) | 153.3.0 | [Mozilla Thunderbird ESR (ka) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ka-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (kab) | 153.3.0 | [Mozilla Thunderbird ESR (kab) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.kab-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (kk) | 153.3.0 | [Mozilla Thunderbird ESR (kk) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.kk-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (ko) | 153.3.0 | [Mozilla Thunderbird ESR (ko) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ko-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (lt) | 153.3.0 | [Mozilla Thunderbird ESR (lt) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.lt-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (lv) | 153.3.0 | [Mozilla Thunderbird ESR (lv) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.lv-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (ms) | 153.3.0 | [Mozilla Thunderbird ESR (ms) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ms-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (nb-NO) | 153.3.0 | [Mozilla Thunderbird ESR (nb-NO) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nb-no-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (nl) | 153.3.0 | [Mozilla Thunderbird ESR (nl) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nl-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (nn-NO) | 153.3.0 | [Mozilla Thunderbird ESR (nn-NO) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nn-no-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (pa-IN) | 153.3.0 | [Mozilla Thunderbird ESR (pa-IN) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pa-in-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (pl) | 153.3.0 | [Mozilla Thunderbird ESR (pl) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pl-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (pt-BR) | 153.3.0 | [Mozilla Thunderbird ESR (pt-BR) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pt-br-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (pt-PT) | 153.3.0 | [Mozilla Thunderbird ESR (pt-PT) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pt-pt-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (rm) | 153.3.0 | [Mozilla Thunderbird ESR (rm) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.rm-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (ro) | 153.3.0 | [Mozilla Thunderbird ESR (ro) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ro-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (ru) | 153.3.0 | [Mozilla Thunderbird ESR (ru) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ru-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (sk) | 153.3.0 | [Mozilla Thunderbird ESR (sk) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sk-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (sl) | 153.3.0 | [Mozilla Thunderbird ESR (sl) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sl-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (sq) | 153.3.0 | [Mozilla Thunderbird ESR (sq) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sq-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (sr) | 153.3.0 | [Mozilla Thunderbird ESR (sr) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sr-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (sv-SE) | 153.3.0 | [Mozilla Thunderbird ESR (sv-SE) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sv-se-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (th) | 153.3.0 | [Mozilla Thunderbird ESR (th) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.th-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (tr) | 153.3.0 | [Mozilla Thunderbird ESR (tr) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.tr-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (uk) | 153.3.0 | [Mozilla Thunderbird ESR (uk) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.uk-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (uz) | 153.3.0 | [Mozilla Thunderbird ESR (uz) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.uz-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (vi) | 153.3.0 | [Mozilla Thunderbird ESR (vi) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.vi-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (zh-CN) | 153.3.0 | [Mozilla Thunderbird ESR (zh-CN) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.zh-cn-153.3.0.md) | Sep 16, 2026 | | Windows apps | Mozilla Thunderbird ESR (zh-TW) | 153.3.0 | [Mozilla Thunderbird ESR (zh-TW) 153.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.zh-tw-153.3.0.md) | Sep 16, 2026 | | macOS | Mozilla Thunderbird | 156.0 | [Mozilla Thunderbird 156.0](https://patchblox.com/security/data/fix/macos/org.mozilla.thunderbird-156.0.md) | Sep 10, 2026 | | Linux | MozillaThunderbird sles 15.7 | 153.4.0-150400.13.6.1 | [SUSE-SU-2026:4627-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4627-1.md) | Nov 7, 2026 | | Linux | thunderbird Debian 12.15 (bookworm) | 1:140.16.0esr-1~deb12u1 | [DEBIAN-CVE-2026-92240](https://patchblox.com/security/data/fix/linux/debian-cve-2026-92240.md) | Sep 17, 2026 | | Linux | thunderbird Debian 13.5 (trixie) | 1:140.16.0esr-1~deb13u1 | [DEBIAN-CVE-2026-92240](https://patchblox.com/security/data/fix/linux/debian-cve-2026-92240.md) | Sep 17, 2026 | | Linux | thunderbird Debian 14 | 1:153.3.0esr-1 | [DEBIAN-CVE-2026-92240](https://patchblox.com/security/data/fix/linux/debian-cve-2026-92240.md) | Sep 17, 2026 | | Linux | thunderbird RHEL 10 | 140.16.0-1.el10_0 | [RHSA-2026:81392](https://patchblox.com/security/data/fix/linux/rhsa-2026-81392.md) | Sep 30, 2026 | | Linux | thunderbird RHEL 8 | 0:140.16.0-1.el8_10 | [RHSA-2026:73971](https://patchblox.com/security/data/fix/linux/rhsa-2026-73971.md) | Oct 1, 2026 | | Linux | thunderbird RHEL 9 | 0:140.16.0-1.el9_8 | [RHSA-2026:70642](https://patchblox.com/security/data/fix/linux/rhsa-2026-70642.md) | Sep 24, 2026 | | Linux | thunderbird almalinux 10 | 140.16.0-1.el10_2.alma.1 | [ALSA-2026:73130](https://patchblox.com/security/data/fix/linux/alsa-2026-73130.md) | Sep 29, 2026 | | Linux | thunderbird almalinux 8 | 140.16.0-1.el8_10.alma.1 | [ALSA-2026:73971](https://patchblox.com/security/data/fix/linux/alsa-2026-73971.md) | Sep 30, 2026 | | Linux | thunderbird almalinux 9 | 140.16.0-1.el9_8.alma.1 | [ALSA-2026:70642](https://patchblox.com/security/data/fix/linux/alsa-2026-70642.md) | Sep 23, 2026 | | Linux | thunderbird ol 10 | 0:140.16.0-1.0.1.el10_2 | [ELSA-2026-73130](https://patchblox.com/security/data/fix/linux/elsa-2026-73130.md) | Sep 29, 2026 | | Linux | thunderbird ol 8 | 0:140.16.0-1.0.1.el8_10 | [ELSA-2026-73971](https://patchblox.com/security/data/fix/linux/elsa-2026-73971.md) | Oct 1, 2026 | | Linux | thunderbird ol 9 | 0:140.16.0-1.0.1.el9_8 | [ELSA-2026-70642](https://patchblox.com/security/data/fix/linux/elsa-2026-70642.md) | Sep 24, 2026 | | Linux | thunderbird rocky 10 | 0:140.16.0-1.el10_2 | [RLSA-2026:73130](https://patchblox.com/security/data/fix/linux/rlsa-2026-73130.md) | Sep 30, 2026 | | Linux | thunderbird rocky 8 | 0:140.16.0-1.el8_10 | [RLSA-2026:73971](https://patchblox.com/security/data/fix/linux/rlsa-2026-73971.md) | Oct 1, 2026 | | Linux | thunderbird rocky 9 | 0:140.16.0-1.el9_8 | [RLSA-2026:70642](https://patchblox.com/security/data/fix/linux/rlsa-2026-70642.md) | Sep 25, 2026 | --- Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.