CVE-2026-92060 Use-after-free in the Internationalization component

Use-after-free in the Internationalization component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3...

CVE-2026-92049 Use-after-free in the Widget: Win32 component

Use-after-free in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3...

EUVD-2026-78510

Privilege escalation in the Crash Reporting component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156...

CVE-2026-92036 Incorrect boundary conditions in the Networking: HTTP component

Incorrect boundary conditions in the Networking: HTTP component. This vulnerability was fixed in Firefox 156 and Thunderbird 156...

Mozilla Firefox < 156.0

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 156.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-90 advisory. - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156,...

PT-2026-92010

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 156 Firefox ESR versions prior to 153.3 Thunderbird versions prior to 156 Thunderbird versions prior to 153.3 Description A mitigation bypass exists within the Popup Blocker component. Recommendations Update Firefox t...

Mozilla Firefox < 156.0

The version of Firefox installed on the remote Windows host is prior to 156.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-90 advisory. - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156, Firefox ESR...

KLA91282 Multiple vulnerabilities in Mozilla Firefox ESR

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code, obtain sensitive information, spoof user interface. Below is a complete list of vulnerabilities: 1. A...

KLA91285 Multiple vulnerabilities in Mozilla Thunderbird ESR

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code, obtain sensitive information. Below is a complete list of vulnerabilities: 1. Security vulnerability can ...

KLA91287 Multiple vulnerabilities in Mozilla Thunderbird

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code, obtain sensitive information, spoof user interface. Below is a complete list of vulnerabilities: 1...

KLA91284 Multiple vulnerabilities in Mozilla Firefox ESR

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code, obtain sensitive information. Below is a complete list of vulnerabilities: 1. A remote code execution...

KLA91283 Multiple vulnerabilities in Mozilla Firefox

Multiple vulnerabilities were found in Mozilla Firefox. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code, obtain sensitive information, spoof user interface. Below is a complete list of vulnerabilities: 1. Security...

OESA-2026-3842 thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2.CVE-2026-84119 Use-after-free in the...

OESA-2026-3790 firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global mozdebugprefix /lib/debug %global mozdebugdir /lib/debug/ %global unamem %uname -m %global symbolsfilename -.en-US.-%uname.crashreporter-symbols.zip %global symbolsfilepath...

OESA-2026-3791 firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global mozdebugprefix /lib/debug %global mozdebugdir /lib/debug/ %global unamem %uname -m %global symbolsfilename -.en-US.-%uname.crashreporter-symbols.zip %global symbolsfilepath...

OESA-2026-3789 firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global mozdebugprefix /lib/debug %global mozdebugdir /lib/debug/ %global unamem %uname -m %global symbolsfilename -.en-US.-%uname.crashreporter-symbols.zip %global symbolsfilepath...

Astra Linux – Vulnerability in Firefox and Thunderbird

A permission leak could have occurred from a trusted site to an untrusted site through embed or object elements. This vulnerability affects Firefox 132, Firefox ESR 128.4, Firefox ESR 115.17, Thunderbird 128.4, and Thunderbird 132...

Astra Linux – Vulnerability in Thunderbird, Firefox

Parsing a JavaScript module as JSON can, under certain circumstances, lead to cross-compartment access, which may result in a use-after-free vulnerability. This vulnerability has been fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6...

Astra Linux – Vulnerability in Firefox

Mozilla developers Gabriele Svelto, Randell Jesup, and the Mozilla Fuzzing Team reported memory safety bugs in Firefox 99. Some of these bugs exhibited signs of memory corruption, and we assume that with sufficient effort, some of these bugs could have been exploited to execute arbitrary code. Th...

Astra Linux – Vulnerability in Firefox and Thunderbird

After requesting multiple permissions and closing the first permission panel, subsequent permission panels will be displayed in a different position, but still record a click at the default location. This allows users to be tricked into accepting permissions they do not want to grant. This bug on...