PT-2026-27419

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions 115.33 through 140.8 Thunderbird versions prior to 149 Thunderbird ESR versions 140.8 through 140.9 Description The software contains memory safety bugs, some of which demonstrate evidence of...

PT-2026-27398

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description The issue involves incorrect boundary conditions within th...

PT-2026-27406

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description An issue exists due to incorrect boundary conditions within the Graphics component...

PT-2026-27410

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description An information disclosure issue exists in the Widget: Cocoa component. Recommendations Update...

PT-2026-27399

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description A mitigation bypass exists in the Networking: HTTP component. This issue could allow bypassing...

PT-2026-27414

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description The software contains issues related to incorrect boundary conditions and uninitialized memory...

PT-2026-27397

Name of the Vulnerable Software and Affected Versions: Firefox versions prior to 149 Firefox ESR versions prior to 115.34 and 140.9 Thunderbird versions prior to 149 and 140.9 Description: A flaw exists in the JavaScript Engine's JIT component, specifically a JIT miscompilation issue. This can le...

PT-2026-27400

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description A use-after-free issue exists in the JavaScript Engine component. This condition occurs when...

PT-2026-27409

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description A use-after-free issue exists in the Widget: Cocoa component. This can potentially lead to...

PT-2026-27387

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description A flaw exists in Firefox and Thunderbird due to a use-after-free condition within the Disabilit...

PT-2026-27394

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description The Audio/Video: Web Codecs component contains incorrect boundary conditions. Recommendations...

PT-2026-27388

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description A sandbox escape is possible due to incorrect boundary...

PT-2026-27392

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description An issue exists due to incorrect boundary conditions withi...

PT-2026-27415

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description A privilege escalation issue exists in the Netmonitor component. This allows for potential...

PT-2026-27417

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description The issue involves incorrect boundary conditions within the Graphics: Text component. This coul...

PT-2026-27402

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description A denial-of-service issue exists in the WebRTC: Signaling component. Recommendations Update...

PT-2026-27413

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description An issue exists in the Graphics: Canvas2D component due to uninitialized memory. Recommendation...

PT-2026-27404

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description The Graphics Canvas2D component contains incorrect boundar...

PT-2026-27384

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 115.34 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description The Graphics: Canvas2D component contains incorrect bounda...

PT-2026-27403

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description An undefined behavior exists within the WebRTC: Signaling component. This issue impacts the...