# CVE-2025-5262: Mozilla Thunderbird ESR and 2 others: Double Free

CVE-2025-5262 is fixed in 133 products on 2 platforms, first by Mozilla Thunderbird (af) 139.0, released May 27, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-5262
- Priority: High
- CVSS: 7.5
- EPSS: 0.0046
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 27, 2025
- Weakness: CWE-415: Double Free
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-5262

## Description

A double-free could have occurred in `vpx_codec_enc_init_multi` after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 139 and Thunderbird < 128.11.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Thunderbird (af) | 139.0 | [Mozilla Thunderbird (af) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.af-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (ar) | 139.0 | [Mozilla Thunderbird (ar) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ar-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (ast) | 139.0 | [Mozilla Thunderbird (ast) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ast-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (be) | 139.0 | [Mozilla Thunderbird (be) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.be-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (bg) | 139.0 | [Mozilla Thunderbird (bg) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.bg-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (br) | 139.0 | [Mozilla Thunderbird (br) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.br-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (ca) | 139.0 | [Mozilla Thunderbird (ca) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ca-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (cak) | 139.0 | [Mozilla Thunderbird (cak) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cak-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (cs) | 139.0 | [Mozilla Thunderbird (cs) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cs-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (cy) | 139.0 | [Mozilla Thunderbird (cy) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cy-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (da) | 139.0 | [Mozilla Thunderbird (da) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.da-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (de) | 139.0 | [Mozilla Thunderbird (de) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.de-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (dsb) | 139.0 | [Mozilla Thunderbird (dsb) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.dsb-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (el) | 139.0 | [Mozilla Thunderbird (el) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.el-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (en-CA) | 139.0 | [Mozilla Thunderbird (en-CA) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-ca-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (en-GB) | 139.0 | [Mozilla Thunderbird (en-GB) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-gb-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (en-US) | 139.0 | [Mozilla Thunderbird (en-US) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (es-AR) | 139.0 | [Mozilla Thunderbird (es-AR) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-ar-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (es-ES) | 139.0 | [Mozilla Thunderbird (es-ES) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-es-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (es-MX) | 139.0 | [Mozilla Thunderbird (es-MX) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-mx-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (et) | 139.0 | [Mozilla Thunderbird (et) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.et-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (eu) | 139.0 | [Mozilla Thunderbird (eu) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.eu-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (fi) | 139.0 | [Mozilla Thunderbird (fi) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fi-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (fr) | 139.0 | [Mozilla Thunderbird (fr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fr-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (fy-NL) | 139.0 | [Mozilla Thunderbird (fy-NL) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fy-nl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (ga-IE) | 139.0 | [Mozilla Thunderbird (ga-IE) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ga-ie-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (gd) | 139.0 | [Mozilla Thunderbird (gd) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gd-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (gl) | 139.0 | [Mozilla Thunderbird (gl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (he) | 139.0 | [Mozilla Thunderbird (he) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.he-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (hr) | 139.0 | [Mozilla Thunderbird (hr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hr-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (hsb) | 139.0 | [Mozilla Thunderbird (hsb) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hsb-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (hu) | 139.0 | [Mozilla Thunderbird (hu) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hu-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (hy-AM) | 139.0 | [Mozilla Thunderbird (hy-AM) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hy-am-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (id) | 139.0 | [Mozilla Thunderbird (id) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.id-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (is) | 139.0 | [Mozilla Thunderbird (is) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.is-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (it) | 139.0 | [Mozilla Thunderbird (it) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.it-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (ja) | 139.0 | [Mozilla Thunderbird (ja) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ja-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (ka) | 139.0 | [Mozilla Thunderbird (ka) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ka-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (kab) | 139.0 | [Mozilla Thunderbird (kab) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kab-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (kk) | 139.0 | [Mozilla Thunderbird (kk) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kk-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (ko) | 139.0 | [Mozilla Thunderbird (ko) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ko-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (lt) | 139.0 | [Mozilla Thunderbird (lt) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lt-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (lv) | 139.0 | [Mozilla Thunderbird (lv) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lv-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (ms) | 139.0 | [Mozilla Thunderbird (ms) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ms-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (nb-NO) | 139.0 | [Mozilla Thunderbird (nb-NO) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nb-no-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (nl) | 139.0 | [Mozilla Thunderbird (nl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (nn-NO) | 139.0 | [Mozilla Thunderbird (nn-NO) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nn-no-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (pa-IN) | 139.0 | [Mozilla Thunderbird (pa-IN) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pa-in-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (pl) | 139.0 | [Mozilla Thunderbird (pl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (pt-BR) | 139.0 | [Mozilla Thunderbird (pt-BR) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-br-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (pt-PT) | 139.0 | [Mozilla Thunderbird (pt-PT) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-pt-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (rm) | 139.0 | [Mozilla Thunderbird (rm) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.rm-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (ro) | 139.0 | [Mozilla Thunderbird (ro) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ro-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (ru) | 139.0 | [Mozilla Thunderbird (ru) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ru-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (sk) | 139.0 | [Mozilla Thunderbird (sk) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sk-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (sl) | 139.0 | [Mozilla Thunderbird (sl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (sq) | 139.0 | [Mozilla Thunderbird (sq) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sq-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (sr) | 139.0 | [Mozilla Thunderbird (sr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sr-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (sv-SE) | 139.0 | [Mozilla Thunderbird (sv-SE) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sv-se-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (th) | 139.0 | [Mozilla Thunderbird (th) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.th-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (tr) | 139.0 | [Mozilla Thunderbird (tr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.tr-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (uk) | 139.0 | [Mozilla Thunderbird (uk) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uk-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (uz) | 139.0 | [Mozilla Thunderbird (uz) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uz-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (vi) | 139.0 | [Mozilla Thunderbird (vi) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.vi-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (zh-CN) | 139.0 | [Mozilla Thunderbird (zh-CN) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-cn-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird (zh-TW) | 139.0 | [Mozilla Thunderbird (zh-TW) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-tw-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Thunderbird ESR (af) | 140.1.1 | [Mozilla Thunderbird ESR (af) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.af-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ar) | 140.1.1 | [Mozilla Thunderbird ESR (ar) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ar-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ast) | 140.1.1 | [Mozilla Thunderbird ESR (ast) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ast-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (be) | 140.1.1 | [Mozilla Thunderbird ESR (be) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.be-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (bg) | 140.1.1 | [Mozilla Thunderbird ESR (bg) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.bg-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (br) | 140.1.1 | [Mozilla Thunderbird ESR (br) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.br-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ca) | 140.1.1 | [Mozilla Thunderbird ESR (ca) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ca-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (cak) | 140.1.1 | [Mozilla Thunderbird ESR (cak) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cak-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (cs) | 140.1.1 | [Mozilla Thunderbird ESR (cs) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cs-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (cy) | 140.1.1 | [Mozilla Thunderbird ESR (cy) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cy-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (da) | 140.1.1 | [Mozilla Thunderbird ESR (da) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.da-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (de) | 140.1.1 | [Mozilla Thunderbird ESR (de) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.de-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (dsb) | 140.1.1 | [Mozilla Thunderbird ESR (dsb) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.dsb-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (el) | 140.1.1 | [Mozilla Thunderbird ESR (el) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.el-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (en-CA) | 140.1.1 | [Mozilla Thunderbird ESR (en-CA) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.en-ca-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (en-GB) | 140.1.1 | [Mozilla Thunderbird ESR (en-GB) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.en-gb-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (en-US) | 140.1.1 | [Mozilla Thunderbird ESR (en-US) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (es-AR) | 140.1.1 | [Mozilla Thunderbird ESR (es-AR) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-ar-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (es-ES) | 140.1.1 | [Mozilla Thunderbird ESR (es-ES) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-es-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (es-MX) | 140.1.1 | [Mozilla Thunderbird ESR (es-MX) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-mx-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (et) | 140.1.1 | [Mozilla Thunderbird ESR (et) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.et-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (eu) | 140.1.1 | [Mozilla Thunderbird ESR (eu) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.eu-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (fi) | 140.1.1 | [Mozilla Thunderbird ESR (fi) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fi-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (fr) | 140.1.1 | [Mozilla Thunderbird ESR (fr) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fr-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (fy-NL) | 140.1.1 | [Mozilla Thunderbird ESR (fy-NL) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fy-nl-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ga-IE) | 140.1.1 | [Mozilla Thunderbird ESR (ga-IE) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ga-ie-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (gd) | 140.1.1 | [Mozilla Thunderbird ESR (gd) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.gd-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (gl) | 140.1.1 | [Mozilla Thunderbird ESR (gl) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.gl-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (he) | 140.1.1 | [Mozilla Thunderbird ESR (he) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.he-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (hr) | 140.1.1 | [Mozilla Thunderbird ESR (hr) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hr-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (hsb) | 140.1.1 | [Mozilla Thunderbird ESR (hsb) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hsb-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (hu) | 140.1.1 | [Mozilla Thunderbird ESR (hu) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hu-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (hy-AM) | 140.1.1 | [Mozilla Thunderbird ESR (hy-AM) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hy-am-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (id) | 140.1.1 | [Mozilla Thunderbird ESR (id) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.id-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (is) | 140.1.1 | [Mozilla Thunderbird ESR (is) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.is-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (it) | 140.1.1 | [Mozilla Thunderbird ESR (it) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.it-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ja) | 140.1.1 | [Mozilla Thunderbird ESR (ja) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ja-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ka) | 140.1.1 | [Mozilla Thunderbird ESR (ka) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ka-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (kab) | 140.1.1 | [Mozilla Thunderbird ESR (kab) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.kab-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (kk) | 140.1.1 | [Mozilla Thunderbird ESR (kk) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.kk-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ko) | 140.1.1 | [Mozilla Thunderbird ESR (ko) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ko-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (lt) | 140.1.1 | [Mozilla Thunderbird ESR (lt) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.lt-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (lv) | 140.1.1 | [Mozilla Thunderbird ESR (lv) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.lv-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ms) | 140.1.1 | [Mozilla Thunderbird ESR (ms) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ms-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (nb-NO) | 140.1.1 | [Mozilla Thunderbird ESR (nb-NO) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nb-no-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (nl) | 140.1.1 | [Mozilla Thunderbird ESR (nl) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nl-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (nn-NO) | 140.1.1 | [Mozilla Thunderbird ESR (nn-NO) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nn-no-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (pa-IN) | 140.1.1 | [Mozilla Thunderbird ESR (pa-IN) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pa-in-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (pl) | 140.1.1 | [Mozilla Thunderbird ESR (pl) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pl-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (pt-BR) | 140.1.1 | [Mozilla Thunderbird ESR (pt-BR) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pt-br-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (pt-PT) | 140.1.1 | [Mozilla Thunderbird ESR (pt-PT) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pt-pt-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (rm) | 140.1.1 | [Mozilla Thunderbird ESR (rm) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.rm-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ro) | 140.1.1 | [Mozilla Thunderbird ESR (ro) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ro-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ru) | 140.1.1 | [Mozilla Thunderbird ESR (ru) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ru-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (sk) | 140.1.1 | [Mozilla Thunderbird ESR (sk) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sk-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (sl) | 140.1.1 | [Mozilla Thunderbird ESR (sl) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sl-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (sq) | 140.1.1 | [Mozilla Thunderbird ESR (sq) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sq-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (sr) | 140.1.1 | [Mozilla Thunderbird ESR (sr) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sr-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (sv-SE) | 140.1.1 | [Mozilla Thunderbird ESR (sv-SE) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sv-se-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (th) | 140.1.1 | [Mozilla Thunderbird ESR (th) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.th-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (tr) | 140.1.1 | [Mozilla Thunderbird ESR (tr) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.tr-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (uk) | 140.1.1 | [Mozilla Thunderbird ESR (uk) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.uk-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (uz) | 140.1.1 | [Mozilla Thunderbird ESR (uz) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.uz-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (vi) | 140.1.1 | [Mozilla Thunderbird ESR (vi) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.vi-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (zh-CN) | 140.1.1 | [Mozilla Thunderbird ESR (zh-CN) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.zh-cn-140.1.1.md) | Aug 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (zh-TW) | 140.1.1 | [Mozilla Thunderbird ESR (zh-TW) 140.1.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.zh-tw-140.1.1.md) | Aug 5, 2025 |
| Linux | MozillaThunderbird opensuse-leap 15.6 | 128.11.0-150200.8.221.1 | [SUSE-SU-2025:01946-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-01946-1.md) | Jun 13, 2025 |
| Linux | MozillaThunderbird sles 15.6 | 128.11.0-150200.8.221.1 | [SUSE-SU-2025:01946-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-01946-1.md) | Jun 13, 2025 |
| Linux | MozillaThunderbird sles 15.7 | 128.11.0-150200.8.221.1 | [SUSE-SU-2025:01946-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-01946-1.md) | Jun 13, 2025 |

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Data as of 2026-11-08T00:53:09Z 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

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