CVE-2026-4692

Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4692

Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

Mozilla -- Multiple vulnerabilities

CVE-2026-4721: Memory safety bugs. Potential arbitrary code execution. CVE-2026-4709: Incorrect boundary conditions in the Audio/Video: GMP component. CVE-2026-4707: Incorrect boundary conditions in the Graphics: Canvas2D component. CVE-2026-4706: Incorrect boundary conditions in the Graphics:...

PT-2026-27391

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description A sandbox escape issue exists in the Responsive Design Mod...

EUVD-2021-10915

Malware in sbrugna...

Linux Distros Unpatched Vulnerability : CVE-2021-23995

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been...

SUSE CVE-2021-23995

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

NewStart CGSL MAIN 6.02 : firefox Multiple Vulnerabilities (NS-SA-2021-0131)

The remote NewStart CGSL host, running version MAIN 6.02, has firefox packages installed that are affected by multiple vulnerabilities: - Further techniques that built on the slipstream research combined with a malicious webpage could have exposed both an internal network's hosts as well as...

CVE-2021-23995

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-23995

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

DEBIAN-CVE-2021-23995

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

Code injection

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-23995

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-23995

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-23995

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

USN-4995-1: Thunderbird vulnerabilities

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, spoof the UI, bypass security restrictions, or...

USN-4995-1 thunderbird vulnerabilities

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, spoof the UI, bypass security restrictions, or...

The vulnerability of the Responsive Design Mode in the Thunderbird email client, as well as in the Firefox and Firefox ESR browsers, allows a hacker to execute arbitrary code.

The vulnerability of the Responsive Design Mode in the Thunderbird email client, as well as in browsers like Firefox and Firefox ESR, is related to the use of memory after it is freed. Exploiting this vulnerability can allow a remote attacker to execute arbitrary code...

Updated thunderbird packages fix security vulnerabilities

More internal network hosts could have been probed by a malicious webpage: Further techniques that built on the slipstream research combined with a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine CVE-2021-23961. Out of...

Oracle Linux 8 : thunderbird (ELSA-2021-1353)

The remote Oracle Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2021-1353 advisory. 78.10.0-1.0.1 - Replaced thunderbird-redhat-default-prefs.js with thunderbird-oracle-default-prefs.js 78.10.0-1 - Update to 78.10.0 Tenable has extract...