496
Total CVEs
136
Critical
189
High
103
Medium
68
Low

Recent CVEs

Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been expl...

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Apr 7, 2026

9.8

CVSS

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with en...

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Apr 7, 2026

9.8

CVSS

Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Apr 7, 2026

8.8

CVSS

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Apr 7, 2026

8.8

CVSS

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and w...

Affected versions: 115.34.0 140.9.0 149.0.1

Published: Apr 7, 2026

9.8

CVSS

Memory safety bugs present in Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to...

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Spoofing issue in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 149 and Thunderbird 149....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

6.5

CVSS

Denial-of-service in the Libraries component in NSS. This vulnerability was fixed in Firefox 149 and Thunderbird 149....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Denial-of-service in the XML component. This vulnerability was fixed in Firefox 149 and Thunderbird 149....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149 and Thunderbird 149....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

10.0

CVSS

Undefined behavior in the Audio/Video component. This vulnerability was fixed in Firefox 149 and Thunderbird 149....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.1

CVSS

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149 and Thunderbird 149....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Privilege escalation in the IPC component. This vulnerability was fixed in Firefox 149 and Thunderbird 149....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

8.8

CVSS

Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that...

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort ...

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

8.1

CVSS

Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.1

CVSS

Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.1

CVSS

Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Information disclosure in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Denial-of-service in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

10.0

CVSS

Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

9.8

CVSS

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and T...

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

8.6

CVSS

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and T...

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

10.0

CVSS

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

10.0

CVSS

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, Thunderbird 149, and Thunderbird 140...

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

8.6

CVSS

Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS

Race condition, use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9....

Affected versions: 0.1 0.10 0.10.1 0.2 0.3 +743 more

Published: Mar 24, 2026

7.5

CVSS