# CVE-2022-29914: Mozilla Thunderbird and 4 others: Improper Restriction of Rendered UI Layers or Frames CVE-2022-29914 is fixed in 13 products on 2 platforms, first by Mozilla Thunderbird (en-US) 91.9.0, released May 2, 2022. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2022-29914 - Priority: High - CVSS: 9.8 (Important) - EPSS: 0.0066 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: May 3, 2022 - Weakness: CWE-1021: Improper Restriction of Rendered UI Layers or Frames - Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-29914 ## Description When reusing existing popups Firefox would have allowed them to cover the fullscreen notification UI, which could have enabled browser spoofing attacks. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Windows apps | Mozilla Firefox (en-US) | 100.0.1 | [Mozilla Firefox (en-US) 100.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-100.0.1.md) | May 19, 2022 | | Windows apps | Mozilla Firefox ESR (en-US) | 102.0 | [Mozilla Firefox ESR (en-US) 102.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr-102.0.md) | Jun 23, 2022 | | Windows apps | Mozilla Thunderbird (en-US) | 91.9.0 | [Mozilla Thunderbird (en-US) 91.9.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-91.9.0.md) | May 2, 2022 | | Linux | firefox RHEL 8 | 0:91.9.0-1.el8_5 | [RHSA-2022:1705](https://patchblox.com/security/data/fix/linux/rhsa-2022-1705.md) | May 4, 2022 | | Linux | firefox RHEL 9 | 0:91.9.0-1.el9_0 | [RHSA-2022:4590](https://patchblox.com/security/data/fix/linux/rhsa-2022-4590.md) | May 18, 2022 | | Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 100.0+build2-0ubuntu0.18.04.1 | [firefox 100.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-100.0-build2-0ubuntu0.18.04.1.md) | May 6, 2022 | | Linux | firefox Ubuntu 20.04 LTS (focal) | 100.0+build2-0ubuntu0.20.04.1 | [firefox 100.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-100.0-build2-0ubuntu0.20.04.1.md) | May 6, 2022 | | Linux | firefox almalinux 8 | 91.9.0-1.el8_5.alma | [ALSA-2022:1705](https://patchblox.com/security/data/fix/linux/alsa-2022-1705.md) | May 4, 2022 | | Linux | firefox ol 8 | 0:91.9.0-1.0.1.el8_5 | [ELSA-2022-1705](https://patchblox.com/security/data/fix/linux/elsa-2022-1705.md) | May 4, 2022 | | Linux | firefox ol 9 | 0:91.9.0-1.0.1.el9_0 | [ELSA-2022-4590](https://patchblox.com/security/data/fix/linux/elsa-2022-4590.md) | Jun 30, 2022 | | Linux | firefox rocky 8 | 0:91.9.0-1.el8_5 | [RLSA-2022:1705](https://patchblox.com/security/data/fix/linux/rlsa-2022-1705.md) | May 4, 2022 | | Linux | firefox-esr Debian 12.15 (bookworm) | 91.9.0esr-1 | [DEBIAN-CVE-2022-29914](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29914.md) | Dec 22, 2022 | | Linux | firefox-esr Debian 13.5 (trixie) | 91.9.0esr-1 | [DEBIAN-CVE-2022-29914](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29914.md) | Dec 22, 2022 | | Linux | firefox-esr Debian 14 | 91.9.0esr-1 | [DEBIAN-CVE-2022-29914](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29914.md) | Dec 22, 2022 | | Linux | firefox-geckodriver Ubuntu 18.04.6 LTS (bionic) | 100.0+build2-0ubuntu0.18.04.1 | [firefox-geckodriver 100.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-geckodriver-100.0-build2-0ubuntu0.18.04.1.md) | May 6, 2022 | | Linux | firefox-geckodriver Ubuntu 20.04 LTS (focal) | 100.0+build2-0ubuntu0.20.04.1 | [firefox-geckodriver 100.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-geckodriver-100.0-build2-0ubuntu0.20.04.1.md) | May 6, 2022 | | Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 100.0+build2-0ubuntu0.18.04.1 | [firefox-mozsymbols 100.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-100.0-build2-0ubuntu0.18.04.1.md) | May 6, 2022 | | Linux | firefox-mozsymbols Ubuntu 20.04 LTS (focal) | 100.0+build2-0ubuntu0.20.04.1 | [firefox-mozsymbols 100.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-mozsymbols-100.0-build2-0ubuntu0.20.04.1.md) | May 6, 2022 | | Linux | thunderbird Debian 12.15 (bookworm) | 1:91.9.0-1 | [DEBIAN-CVE-2022-29914](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29914.md) | Dec 22, 2022 | | Linux | thunderbird Debian 13.5 (trixie) | 1:91.9.0-1 | [DEBIAN-CVE-2022-29914](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29914.md) | Dec 22, 2022 | | Linux | thunderbird Debian 14 | 1:91.9.0-1 | [DEBIAN-CVE-2022-29914](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29914.md) | Dec 22, 2022 | | Linux | thunderbird RHEL 8 | 0:91.9.0-3.el8_5 | [RHSA-2022:1730](https://patchblox.com/security/data/fix/linux/rhsa-2022-1730.md) | May 5, 2022 | | Linux | thunderbird RHEL 9 | 0:91.9.0-3.el9_0 | [RHSA-2022:4589](https://patchblox.com/security/data/fix/linux/rhsa-2022-4589.md) | May 18, 2022 | | Linux | thunderbird Ubuntu 18.04.6 LTS (bionic) | 1:91.9.1+build1-0ubuntu0.18.04.1 | [thunderbird 1:91.9.1+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-1-91.9.1-build1-0ubuntu0.18.04.1.md) | May 22, 2022 | | Linux | thunderbird Ubuntu 20.04 LTS (focal) | 1:91.9.1+build1-0ubuntu0.20.04.1 | [thunderbird 1:91.9.1+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-1-91.9.1-build1-0ubuntu0.20.04.1.md) | May 22, 2022 | | Linux | thunderbird Ubuntu 22.04.1 LTS (jammy) | 1:91.9.1+build1-0ubuntu0.22.04.1 | [thunderbird 1:91.9.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-1-91.9.1-build1-0ubuntu0.22.04.1.md) | May 22, 2022 | | Linux | thunderbird almalinux 8 | 91.9.0-3.el8_5.alma | [ALSA-2022:1730](https://patchblox.com/security/data/fix/linux/alsa-2022-1730.md) | May 5, 2022 | | Linux | thunderbird ol 8 | 0:91.9.0-3.0.1.el8_5 | [ELSA-2022-1730](https://patchblox.com/security/data/fix/linux/elsa-2022-1730.md) | May 5, 2022 | | Linux | thunderbird ol 9 | 0:91.9.0-3.0.1.el9_0 | [ELSA-2022-4589](https://patchblox.com/security/data/fix/linux/elsa-2022-4589.md) | Jun 30, 2022 | | Linux | thunderbird rocky 8 | 0:91.9.0-3.el8_5 | [RLSA-2022:1730](https://patchblox.com/security/data/fix/linux/rlsa-2022-1730.md) | May 5, 2022 | | Linux | thunderbird-gnome-support Ubuntu 18.04.6 LTS (bionic) | 1:91.9.1+build1-0ubuntu0.18.04.1 | [thunderbird-gnome-support 1:91.9.1+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-91.9.1-build1-0ubuntu0.18.04.1.md) | May 22, 2022 | | Linux | thunderbird-gnome-support Ubuntu 20.04 LTS (focal) | 1:91.9.1+build1-0ubuntu0.20.04.1 | [thunderbird-gnome-support 1:91.9.1+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-gnome-support-1-91.9.1-build1-0ubuntu0.20.04.1.md) | May 22, 2022 | | Linux | thunderbird-gnome-support Ubuntu 22.04.1 LTS (jammy) | 1:91.9.1+build1-0ubuntu0.22.04.1 | [thunderbird-gnome-support 1:91.9.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-gnome-support-1-91.9.1-build1-0ubuntu0.22.04.1.md) | May 22, 2022 | | Linux | thunderbird-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 1:91.9.1+build1-0ubuntu0.18.04.1 | [thunderbird-mozsymbols 1:91.9.1+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-91.9.1-build1-0ubuntu0.18.04.1.md) | May 22, 2022 | | Linux | thunderbird-mozsymbols Ubuntu 20.04 LTS (focal) | 1:91.9.1+build1-0ubuntu0.20.04.1 | [thunderbird-mozsymbols 1:91.9.1+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-mozsymbols-1-91.9.1-build1-0ubuntu0.20.04.1.md) | May 22, 2022 | | Linux | thunderbird-mozsymbols Ubuntu 22.04.1 LTS (jammy) | 1:91.9.1+build1-0ubuntu0.22.04.1 | [thunderbird-mozsymbols 1:91.9.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-mozsymbols-1-91.9.1-build1-0ubuntu0.22.04.1.md) | May 22, 2022 | | Linux | xul-ext-calendar-timezones Ubuntu 18.04.6 LTS (bionic) | 1:91.9.1+build1-0ubuntu0.18.04.1 | [xul-ext-calendar-timezones 1:91.9.1+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-91.9.1-build1-0ubuntu0.18.04.1.md) | May 22, 2022 | | Linux | xul-ext-calendar-timezones Ubuntu 20.04 LTS (focal) | 1:91.9.1+build1-0ubuntu0.20.04.1 | [xul-ext-calendar-timezones 1:91.9.1+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-calendar-timezones-1-91.9.1-build1-0ubuntu0.20.04.1.md) | May 22, 2022 | | Linux | xul-ext-calendar-timezones Ubuntu 22.04.1 LTS (jammy) | 1:91.9.1+build1-0ubuntu0.22.04.1 | [xul-ext-calendar-timezones 1:91.9.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-calendar-timezones-1-91.9.1-build1-0ubuntu0.22.04.1.md) | May 22, 2022 | | Linux | xul-ext-gdata-provider Ubuntu 18.04.6 LTS (bionic) | 1:91.9.1+build1-0ubuntu0.18.04.1 | [xul-ext-gdata-provider 1:91.9.1+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-91.9.1-build1-0ubuntu0.18.04.1.md) | May 22, 2022 | | Linux | xul-ext-gdata-provider Ubuntu 20.04 LTS (focal) | 1:91.9.1+build1-0ubuntu0.20.04.1 | [xul-ext-gdata-provider 1:91.9.1+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-gdata-provider-1-91.9.1-build1-0ubuntu0.20.04.1.md) | May 22, 2022 | | Linux | xul-ext-gdata-provider Ubuntu 22.04.1 LTS (jammy) | 1:91.9.1+build1-0ubuntu0.22.04.1 | [xul-ext-gdata-provider 1:91.9.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-gdata-provider-1-91.9.1-build1-0ubuntu0.22.04.1.md) | May 22, 2022 | | Linux | xul-ext-lightning Ubuntu 18.04.6 LTS (bionic) | 1:91.9.1+build1-0ubuntu0.18.04.1 | [xul-ext-lightning 1:91.9.1+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-lightning-1-91.9.1-build1-0ubuntu0.18.04.1.md) | May 22, 2022 | | Linux | xul-ext-lightning Ubuntu 20.04 LTS (focal) | 1:91.9.1+build1-0ubuntu0.20.04.1 | [xul-ext-lightning 1:91.9.1+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-lightning-1-91.9.1-build1-0ubuntu0.20.04.1.md) | May 22, 2022 | | Linux | xul-ext-lightning Ubuntu 22.04.1 LTS (jammy) | 1:91.9.1+build1-0ubuntu0.22.04.1 | [xul-ext-lightning 1:91.9.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-lightning-1-91.9.1-build1-0ubuntu0.22.04.1.md) | May 22, 2022 | --- Data as of 2026-11-08T19:12:23Z UTC. 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