The vulnerability of the Telemetry component in Firefox web browsers, Firefox ESR, and the Thunderbird email client allows a hacker to trigger a service failure.

The vulnerability of the Telemetry component in Firefox web browsers, Firefox ESR, and the Thunderbird email client is related to deficiencies in access control in isolated environments. Exploiting this vulnerability could allow a malicious actor to cause service interruptions...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-100951)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100951 advisory. Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33,...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-101112)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101112 advisory. Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9,...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Telemetry component...

MGASA-2026-0080 Updated nss & firefox packages fix security vulnerabilities

Denial-of-service in the XML component. CVE-2025-59375 Race condition, use-after-free in the Graphics: WebRender component. CVE-2026-4684 Incorrect boundary conditions in the Graphics: Canvas2D component. CVE-2026-4685 Incorrect boundary conditions in the Graphics: Canvas2D component. CVE-2026-46...