Mozilla Thunderbird
1601 CVEs affecting Mozilla Thunderbird. Latest disclosed: 2026-05-19. Critical: 29, High: 58.
| CVE | Severity | Score | Published | Summary |
|---|---|---|---|---|
CVE-2026-8956 | Critical | 9.8 | 2026-05-19 | Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. |
CVE-2026-8401 | Critical | 9.8 | 2026-05-12 | Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11. |
CVE-2026-8094 | Critical | 9.8 | 2026-05-07 | Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2. |
CVE-2026-8091 | Critical | 9.8 | 2026-05-07 | Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thund… |
CVE-2026-5735 | Critical | 9.8 | 2026-04-07 | Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough… |
CVE-2026-4698 | Critical | 9.8 | 2026-03-24 | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149… |
CVE-2026-2786 | Critical | 9.8 | 2026-02-24 | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. |
CVE-2017-5461 | Critical | 9.8 | 2017-05-11 | Mozilla Network Security Services (NSS) before 3.21.4, 3.22.x through 3.28.x before 3.28.4, 3.29.x before 3.29.5, and 3.30.x before 3.30.1 allows remote attack… |
CVE-2014-1532 | Critical | 9.8 | 2014-04-30 | Use-after-free vulnerability in the nsHostResolver::ConditionallyRefreshRecord function in libxul.so in Mozilla Firefox before 29.0, Firefox ESR 24.x before 24… |
CVE-2014-1524 | Critical | 9.8 | 2014-04-30 | The nsXBLProtoImpl::InstallImplementation function in Mozilla Firefox before 29.0, Firefox ESR 24.x before 24.5, Thunderbird before 24.5, and SeaMonkey before… |
CVE-2014-1514 | Critical | 9.8 | 2014-03-19 | vmtypedarrayobject.cpp in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 does not validate the l… |
CVE-2014-1511 | Critical | 9.8 | 2014-03-19 | Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allow remote attackers to bypass the popup blocke… |
CVE-2014-1510 | Critical | 9.8 | 2014-03-19 | The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allows remote attac… |
CVE-2014-1493 | Critical | 9.8 | 2014-03-19 | Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey… |
CVE-2014-1486 | Critical | 9.8 | 2014-02-06 | Use-after-free vulnerability in the imgRequestProxy function in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, and SeaMonk… |
CVE-2014-1477 | Critical | 9.8 | 2014-02-06 | Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, and SeaMonkey… |
CVE-2013-6671 | Critical | 9.8 | 2013-12-11 | The nsGfxScrollFrameInner::IsLTR function in Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 allo… |
CVE-2013-5618 | Critical | 9.8 | 2013-12-11 | Use-after-free vulnerability in the nsNodeUtils::LastRelease function in the table-editing user interface in the editor component in Mozilla Firefox before 26… |
CVE-2013-5616 | Critical | 9.8 | 2013-12-11 | Use-after-free vulnerability in the nsEventListenerManager::HandleEventSubType function in Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbi… |
CVE-2013-5615 | Critical | 9.8 | 2013-12-11 | The JavaScript implementation in Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 does not properl… |