firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been...

Mozilla Firefox Thunderbird Buffer Overflow DoS

The vulnerabilities of Mozilla Firefox, Firefox ESR, and the email client Thunderbird involve reading data beyond the buffer in memory. Exploiting these vulnerabilities can allow a remote attacker to cause service interruptions...

SUSE-SU-2026:21828-1 Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues - Update to Firefox Extended Support Release 140.11.0 ESR MFSA 2026-48 bsc1265212. MFSA 2026-48: - CVE-2026-8388: Incorrect boundary conditions in the JavaScript Engine: JIT component. - CVE-2026-8391: Other issue in the JavaScript Engine...

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...

firefox: thunderbird: Memory safety bugs fixed in 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 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory corruption and we presume th...

firefox: thunderbird: Memory safety bugs fixed in 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 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory corruption and we presume th...

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...

CVE-2026-8950

Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11...

CVE-2026-8954

Incorrect boundary conditions, integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11...

firefox: thunderbird: Memory safety bugs fixed in 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 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory corruption and we presume th...

CVE-2026-8970

A privilege escalation vulnerability exists in the Security component of the Firefox web browser and the Thunderbird email client. This vulnerability is related to the insecure management of privileges and could allow a malicious actor to cause service interruptions . The issue has been addressed...

EUVD-2026-30904

Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11...

CVE-2026-8955

Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11...

CVE-2026-8950 Same-origin policy bypass in the Networking: HTTP component

Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11...

CVE-2026-8946 Incorrect boundary conditions in the Audio/Video: Web Codecs component

Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11...

Mozilla’s various products have buffer error vulnerabilities

Mozilla Firefox, among others, are products of the American Mozilla Foundation. Mozilla Firefox is an open-source web browser. Mozilla Firefox ESR is a extended support version of Firefox the web browser. Mozilla Thunderbird is an email client software that emerged independently from the Mozilla...

Mozilla Firefox ESR < 115.36

The version of Firefox ESR installed on the remote Windows host is prior to 115.36. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-47 advisory. - Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. Some of these bugs showed...

Mozilla Firefox ESR < 140.11

The version of Firefox ESR installed on the remote Windows host is prior to 140.11. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-48 advisory. - Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. Some of these bugs showed...

PT-2026-41928

Name of the Vulnerable Software and Affected Versions Firefox versions 140.10 through 150 Thunderbird versions 140.10 through 150 Description Memory safety bugs involving memory corruption could allow an attacker to run arbitrary code. Recommendations Update Firefox to version 151 or ESR 140.11...

NSS Component Unauthorized Access

The vulnerability of the NSS 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 an attacker operating remotely to gain unauthorized access to protected informatio...