Vulnerability of the DOM component: The security features of Mozilla Firefox, Firefox ESR, and the email client Thunderbird allow attackers to circumvent existing security restrictions.

The vulnerability of the DOM component: The security of Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to a flaw in data protection mechanisms. Exploiting this vulnerability allows an attacker to bypass existing security restrictions remotely...

Important: Red Hat Security Advisory: thunderbird security update

An update for thunderbird is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. 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...

RHEL 8 : thunderbird (RHSA-2026:3980)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:3980 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: libvpx: Heap buffer overflow in libvpx CVE-2026-2447 firefox:...

SUSE-SU-2026:0812-1 Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.8.0 ESR MFSA 2026-15 bsc1258568: - CVE-2026-2757: Incorrect boundary conditions in the WebRTC: Audio/Video component - CVE-2026-2758: Use-after-free in the JavaScript: GC component -...

MiracleLinux 8 : firefox-140.8.0-2.el8_10.ML.1 (AXSA:2026-248:04)

The remote MiracleLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2026-248:04 advisory. libvpx: Heap buffer overflow in libvpx CVE-2026-2447 firefox: Invalid pointer in the JavaScript Engine component CVE-2026-2785 firefox: Memory safety...

Important: Red Hat Security Advisory: thunderbird security update

An update for thunderbird 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 fr...

Important: Red Hat Security Advisory: firefox security update

An update for firefox is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service. Red Hat Product Security has rated this update as...

Important: Red Hat Security Advisory: firefox security update

An update for firefox is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerabili...

ALSA-2026:3516 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: libvpx: Heap buffer overflow in libvpx CVE-2026-2447 firefox: Invalid pointer in the JavaScript Engine component CVE-2026-2785 firefox: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR...

firefox security update

An update is available for firefox. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Mozilla Firefox is an open-source web browser, designed for standards...

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...

ALSA-2026:3339 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: libvpx: Heap buffer overflow in libvpx CVE-2026-2447 firefox: Invalid pointer in the JavaScript Engine component CVE-2026-2785 firefox: Memory safety bugs fixed in Firef...

Important: thunderbird

Issue Overview: Spoofing issue in the Downloads Panel component. This vulnerability affects Firefox 146. CVE-2025-14327 CSS-based exfiltration of the content from partially encrypted emails when allowing remote content. This vulnerability affects Thunderbird 147.0.1 and Thunderbird 140.7.1...

SUSE SLED15: MozillaFirefox / MozillaFirefox-branding-upstream / etc (SUSE-SU-2026:0260-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0260-1 advisory. Update to Firefox Extended Support Release 140.7.0 ESR bsc1256340. - MFSA 2026-03 CVE-2026-0877:...

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.7.0 ESR bsc1256340. MFSA 2026-03 CVE-2026-0877: Mitigation bypass in the DOM: Security component CVE-2026-0878: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebG...

SUSE-SU-2026:0153-1 Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues: MFSA 2026-05 bsc1256340: - CVE-2026-0877: Mitigation bypass in the DOM in Security component - CVE-2026-0878: Sandbox escape due to incorrect boundary conditions in the Graphics in CanvasWebGL component - CVE-2026-0879: Sandbox escape...

OPENSUSE-SU-2026:20041-1 Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.7.0 ESR bsc1256340. - MFSA 2026-03 bsc1256340 CVE-2026-0877: Mitigation bypass in the DOM: Security component CVE-2026-0878: Sandbox escape due to incorrect boundary conditions in the Graphic...

SUSE-SU-2026:0122-1 Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.7.0 ESR bsc1256340. - MFSA 2026-03 CVE-2026-0877: Mitigation bypass in the DOM: Security component CVE-2026-0878: Sandbox escape due to incorrect boundary conditions in the Graphics:...

CVE-2026-0890 Spoofing issue in the DOM: Copy & Paste and Drag & Drop component

Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

Important: thunderbird

Issue Overview: Race condition in the Graphics component. This vulnerability affects Firefox 145, Firefox ESR 140.5, and Firefox ESR 115.30. CVE-2025-13012 Mitigation bypass in the DOM: Core & HTML component. This vulnerability affects Firefox 145, Firefox ESR 140.5, and Firefox ESR 115.30...