CVE-2026-8949

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Integer overflow in the Widget: Win32 component...

thunderbird security update

An update is available for thunderbird. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Mozilla Thunderbird is a standalone mail and newsgroup client. Security...

RLSA-2026:22325 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component CVE-2026-8388 firefox: Other issue in the JavaScript Engine component CVE-2026-8391 firefox: Sandbox escape in the Profile Backup component...

Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues Updated to Mozilla Thunderbird 140.11 bsc1265212 MFSA 2026-44: CVE-2026-8090: Use-after-free in the DOM: Networking component. CVE-2026-8092: Memory safety bugs fixed in Thunderbird ESR 140.10.2 and Thunderbird 150.0.2. CVE-2026-8094:...

SUSE-SU-2026:2271-1 Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues - Updated to Mozilla Thunderbird 140.11 bsc1265212 MFSA 2026-44: - CVE-2026-8090: Use-after-free in the DOM: Networking component. - CVE-2026-8092: Memory safety bugs fixed in Thunderbird ESR 140.10.2 and Thunderbird 150.0.2. -...

[SECURITY] Fedora 44 Update: rust-sequoia-octopus-librnp-1.11.1-7.fc44

Reimplementation of RNP's interface using Sequoia for use with Thunderbird...

[SECURITY] Fedora 43 Update: rust-sequoia-octopus-librnp-1.11.1-7.fc43

Reimplementation of RNP's interface using Sequoia for use with Thunderbird...

ROS-20260605-73-0060

The vulnerability of the Layout component: Texts and fonts in Mozilla Firefox, Firefox ESR, and the email client Thunderbird are related to the use of memory after it is released. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and accessibility o...

ROS-20260605-73-0055

The vulnerability of the XPCOM component in Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to a numerical overflow vulnerability. Exploiting this vulnerability allows an attacker to compromise the confidentiality, integrity, and accessibility of the protected informatio...

ROS-20260605-73-0053

The vulnerability of the XPCOM component in Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to a numerical overflow vulnerability. Exploiting this vulnerability allows an attacker to compromise the confidentiality, integrity, and accessibility of the protected informatio...

ROS-20260605-73-0057

Vulnerability of the Audio/Video component: Playback in Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to insufficient checking of unusual or exceptional states. Exploitation of this vulnerability can allow a remote attacker to cause service failures...

ROS-20260605-73-0051

The vulnerability of the Telemetry component in Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to insufficient checking of unusual or exceptional states. Exploiting this vulnerability can allow a malicious actor to cause service failures...

ROS-20260605-73-0056

The vulnerabilities of Mozilla Firefox, Firefox ESR, and the email client Thunderbird are related to insufficient validation of input data. Exploiting these vulnerabilities can allow an attacker to compromise the confidentiality, integrity, and accessibility of protected information...

ROS-20260605-73-0103

Vulnerability of WebRTC component: The networking functions of Mozilla Firefox, Firefox ESR, and the email client Thunderbird are vulnerable due to the execution of operations outside of the buffer in memory. Exploiting this vulnerability can allow attackers to compromise the confidentiality,...

ROS-20260605-73-0086

Vulnerability of the Graphics component: The text-based browsers Mozilla Firefox, Firefox ESR, and the email client Thunderbird are vulnerable to a numerical overflow vulnerability. Exploiting this vulnerability allows an attacker to execute arbitrary code remotely...

ROS-20260605-73-0058

Vulnerability of Audio/Video components: Mozilla Firefox, Firefox ESR, and Thunderbird’s email client use web codecs. This vulnerability is related to insufficient checking of unusual or exceptional states. Exploiting this vulnerability can allow a remote attacker to cause service interruptions...

ROS-20260605-73-0050

The vulnerability of the Canvas2D component in Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to insufficient testing for unusual or exceptional states. Exploiting this vulnerability can allow an attacker to cause service failures remotely...

ROS-20260605-73-0049

The vulnerability of the Canvas2D component in Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to insufficient testing for unusual or exceptional states. Exploiting this vulnerability can allow an attacker to cause service failures remotely...

ROS-20260605-73-0106

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...

ROS-20260605-73-0062

The vulnerability of the JavaScript Engine component in Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to access to resources through incompatible types. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and accessibility ...