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-2026-8975 json Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of m... Not Provided 2026-05-19 2026-05-26
CVE-2026-8974 json Memory safety bugs present in Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and... Not Provided 2026-05-19 2026-05-26
CVE-2026-8973 json Memory safety bugs present in Firefox 150. Some of these bugs showed evidence of memory corruption and we presume that with e... Not Provided 2026-05-19 2026-05-26
CVE-2026-8972 json Privilege escalation in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. Not Provided 2026-05-19 2026-05-20
CVE-2026-8971 json Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. Not Provided 2026-05-19 2026-05-19
CVE-2026-8970 json Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird ... Not Provided 2026-05-19 2026-05-20
CVE-2026-8969 json Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. Not Provided 2026-05-19 2026-05-19
CVE-2026-8968 json Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 15... Not Provided 2026-05-19 2026-05-19
CVE-2026-8967 json Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. Not Provided 2026-05-19 2026-05-20
CVE-2026-8966 json Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. Not Provided 2026-05-19 2026-05-20
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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