Known Vulnerabilities for Thunderbird by Mozilla

Listed below are 10 of the newest known vulnerabilities associated with "Thunderbird" by "Mozilla".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-103500 json An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in siz... Not Provided 2026-09-30 2026-09-30
CVE-2026-100832 json Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 140.17, Th... Not Provided 2026-09-29 2026-09-30
CVE-2026-100831 json Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbi... Not Provided 2026-09-29 2026-09-30
CVE-2026-100830 json Mitigation bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thund... Not Provided 2026-09-29 2026-10-01
CVE-2026-100829 json Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunder... Not Provided 2026-09-29 2026-10-01
CVE-2026-100828 json Mitigation bypass in the Bookmarks & History component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, T... Not Provided 2026-09-29 2026-10-01
CVE-2026-100826 json Denial-of-service in the Storage: StorageManager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 15... Not Provided 2026-09-29 2026-09-30
CVE-2026-100825 json Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, T... Not Provided 2026-09-29 2026-09-30
CVE-2026-100824 json Privilege escalation in the Places component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird... Not Provided 2026-09-29 2026-09-30
CVE-2026-100822 json Spoofing issue in the Networking: HTTP component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunder... Not Provided 2026-09-29 2026-09-30
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationMozillaThunderbird9.0.1
ApplicationMozillaThunderbird9.0
ApplicationMozillaThunderbird9.0
ApplicationMozillaThunderbird9.0
ApplicationMozillaThunderbird9.0
ApplicationMozillaThunderbird9.0
ApplicationMozillaThunderbird9.0
ApplicationMozillaThunderbird8.0
ApplicationMozillaThunderbird8.0
ApplicationMozillaThunderbird8.0
ApplicationMozillaThunderbird8.0
ApplicationMozillaThunderbird8.0
ApplicationMozillaThunderbird8.0
ApplicationMozillaThunderbird78.6.0
ApplicationMozillaThunderbird78.5.1
ApplicationMozillaThunderbird78.4.0
ApplicationMozillaThunderbird78.3
ApplicationMozillaThunderbird78.2
ApplicationMozillaThunderbird78.1.1
ApplicationMozillaThunderbird78.1.0
Results limited to 20 most recent known configurations

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