OESA-2026-4122 firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. Security Fixes: Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird...

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...

firefox: thunderbird: Use-after-free in the DOM: Core & HTML 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: Core & HTML component...

RHEL 9 : thunderbird (RHSA-2026:70642)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:70642 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Privilege escalation in the DOM: Worke...

ALSA-2026:70642 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Privilege escalation in the DOM: Workers component CVE-2026-16365 firefox: thunderbird: Sandbox escape in the Remote Settings Client component CVE-2026-75874 firefox: Sandbox escape due to...

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Privilege escalation in the DOM: Workers component CVE-2026-16365 firefox: thunderbird: Sandbox escape in the Remote Settings Client component CVE-2026-75874 firefox: Sandbox escape due to...

[SECURITY] Fedora 44 Update: thunderbird-155.0-4.fc44

Mozilla Thunderbird is a standalone mail and newsgroup client...

OESA-2026-3982 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, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and...

[SECURITY] Fedora 45 Update: thunderbird-155.0-4.fc45

Mozilla Thunderbird is a standalone mail and newsgroup client...

SUSE SLED15: MozillaThunderbird / MozillaThunderbird-translations-common / etc (SUSE-SU-2026:4268-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4268-1 advisory. Mozilla Thunderbird 153.2: fixed: Deleting an Exchange account retained the outgoing server settings fixed:...

Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues: Mozilla Thunderbird 153.2: fixed: Deleting an Exchange account retained the outgoing server settings fixed: Thunderbird upgrade disabled Settings menu for versions before macOS 13 fixed: Windows jump list menu no longer functioned...

SUSE-SU-2026:4268-1 Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues: Mozilla Thunderbird 153.2: fixed: Deleting an Exchange account retained the outgoing server settings fixed: Thunderbird upgrade disabled Settings menu for versions before macOS 13 fixed: Windows jump list menu no longer functioned...

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...

[slackware-security] mozilla-thunderbird

New mozilla-thunderbird packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/mozilla-thunderbird-140.16.0esr-i686-1slack15.0.txz: Upgraded. This release contains security fixes and improvements. For...

Mozilla Thunderbird < 153.3

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 153.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-96 advisory. - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156,...

Slackware Linux 15.0 / current mozilla-thunderbird Multiple Vulnerabilities (SSA:2026-259-02)

The version of mozilla-thunderbird installed on the remote host is prior to 140.16.0esr / 153.3.0esr. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2026-259-02 advisory. New mozilla-thunderbird packages are available for Slackware 15.0 and -current to fix securit...

Mozilla Thunderbird < 156.0

The version of Thunderbird installed on the remote Windows host is prior to 156.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-94 advisory. - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156, Firefox ES...

Mozilla Thunderbird < 140.16

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 140.16. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-95 advisory. - Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This...

Mozilla Thunderbird < 156.0

The version of Thunderbird 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 mfsa2026-94 advisory. - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156,...

Mozilla Thunderbird < 140.16

The version of Thunderbird installed on the remote Windows host is prior to 140.16. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-95 advisory. - Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerabilit...