Vulnerabilities in web browsers Firefox and Firefox ESR, as well as the Thunderbird email client, allow attackers to trigger a service failure.

The vulnerabilities in web browsers Firefox and Firefox ESR, as well as the Thunderbird email client, are related to the use of memory after it is freed. Exploiting these vulnerabilities can allow an attacker to cause service interruptions...

RockyLinux 9 : thunderbird (RLSA-2026:15892)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:15892 advisory. firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS CVE-2026-6772 firefox: thunderbird: Use-after-free in the JavaScri...

The vulnerabilities in the Firefox ESR and Firefox web browsers, as well as the Thunderbird email client, allow attackers to gain access to confidential data or cause service interruptions.

The vulnerabilities in the Firefox ESR and Firefox web browsers, as well as the Thunderbird email client, involve exploiting authentication vulnerabilities through phising techniques. Exploiting these vulnerabilities can allow a malicious actor to gain access to confidential data or cause service...

The vulnerability of the Thunderbird email client, allowing a hacker to gain access to confidential data

The vulnerability of the Thunderbird email client is related to the lack of mechanisms for encoding or shielding output data. Exploiting this vulnerability can allow a malicious actor to gain access to confidential data...

AlmaLinux 9 : thunderbird (ALSA-2026:15892)

The remote AlmaLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:15892 advisory. firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS CVE-2026-6772 firefox: thunderbird: Use-after-free in the JavaScrip...

MozillaThunderbird-140.10.2-1.1 on GA media (moderate)

MozillaThunderbird-140.10.2-1.1 on GA media Announcement ID: openSUSE-SU-2026:10738-1 Rating: moderate Cross-References: CVE-2026-8090 CVE-2026-8092 CVE-2026-8094 CVSS scores: CVE-2026-8090 SUSE : 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVE-2026-8092 SUSE : 7.5...

CVE-2026-7321

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 WebRTC: Networking component...

CVE-2026-7323

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort som...

CVE-2026-7322

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort som...

CVE-2026-7320

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure due to incorrect boundary conditions in the Audio/Video component...

RHSA-2026:15892 Red Hat Security Advisory: thunderbird security update

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RHSA-2026:15889 Red Hat Security Advisory: thunderbird security update

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firefox: thunderbird: Privilege escalation in the Networking component

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

firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS

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

firefox: thunderbird: Mitigation bypass in the File Handling component

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

firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Uninitialized memory in the Audio/Video: Web Codecs component...

firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS

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

firefox: thunderbird: Other issue in the Libraries component in NSS

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

firefox: thunderbird: Other issue in the Storage: IndexedDB component

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

firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory corrupti...