The vulnerability of Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to reading data beyond the buffer in memory, allowing an attacker to execute arbitrary code.

The vulnerability of Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to reading data beyond the buffer in memory. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

firefox security update

140.11.0-1.0.1 - Fix firefox-oracle-default-prefs.js for new nss Orabug: 37079789 - diable wasisdk to prevent build failure with newer llvm 140.11.0 - Add debranding patches Mustafa Gezen - Add OpenELA default preferences Louis Abel 140.11.0-1 - Update to 140.11.0 ESR...

RHEL 10 : firefox (RHSA-2026:21380)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:21380 advisory. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox:...

RHEL 9 : firefox (RHSA-2026:21378)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:21378 advisory. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox:...

MozillaFirefox-151.0.1-1.1 on GA media (moderate)

MozillaFirefox-151.0.1-1.1 on GA media Announcement ID: openSUSE-SU-2026:10863-1 Rating: moderate Cross-References: CVE-2026-8945 CVE-2026-8946 CVE-2026-8947 CVE-2026-8948 CVE-2026-8949 CVE-2026-8950 CVE-2026-8951 CVE-2026-8952 CVE-2026-8953 CVE-2026-8954 CVE-2026-8955 CVE-2026-8956 CVE-2026-8957...

firefox: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component...

Important: Red Hat Security Advisory: firefox security update

An update for firefox is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

firefox: Same-origin policy bypass in the Networking: HTTP component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Same-origin policy bypass in the Networking: HTTP component...

firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been...

firefox: thunderbird: Other issue in the JavaScript Engine component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Other issue in the JavaScript Engine component...

firefox: Integer overflow in the Networking: JAR component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Integer overflow in the Networking: JAR component...

firefox: Privilege escalation in the Enterprise Policies component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the Enterprise Policies component...

firefox: thunderbird: Privilege escalation in the DOM: Workers component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the DOM: Workers component...

firefox: thunderbird: Sandbox escape in the Profile Backup component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape in the Profile Backup component...

firefox: Spoofing issue in the Form Autofill component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Spoofing issue in the Form Autofill component...

firefox: thunderbird: Use-after-free in the DOM: Bindings (WebIDL) component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the DOM: Bindings WebIDL component...

firefox: Mitigation bypass in the DOM: Security component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Mitigation bypass in the DOM: Security component...

firefox: Sandbox escape due to use-after-free in the Disability Access APIs component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to use-after-free in the Disability Access APIs component...

firefox: thunderbird: Incorrect boundary conditions in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the JavaScript Engine: JIT component...

firefox: Incorrect boundary conditions, integer overflow in the Audio/Video component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions, integer overflow in the Audio/Video component...