Mozilla: >> Firefox >> 101.0.1 Security Vulnerabilities
Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.
CVSS Score
8.1
EPSS Score
0.001
Published
2025-12-09
Use-after-free in the WebRTC: Signaling component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.
CVSS Score
9.8
EPSS Score
0.001
Published
2025-12-09
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.
CVSS Score
8.0
EPSS Score
0.0
Published
2025-12-09
Privilege escalation in the DOM: Notifications component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.
CVSS Score
8.8
EPSS Score
0.001
Published
2025-12-09
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.
CVSS Score
9.8
EPSS Score
0.001
Published
2025-12-09
Same-origin policy bypass in the DOM: Workers component. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, Thunderbird < 145, and Thunderbird < 140.5.
CVSS Score
8.1
EPSS Score
0.0
Published
2025-11-11
Use-after-free in the WebRTC: Audio/Video component. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, Thunderbird < 145, and Thunderbird < 140.5.
CVSS Score
8.8
EPSS Score
0.001
Published
2025-11-11
Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability affects Firefox < 145 and Thunderbird < 145.
CVSS Score
9.8
EPSS Score
0.001
Published
2025-11-11
Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability affects Firefox < 145 and Thunderbird < 145.
CVSS Score
9.8
EPSS Score
0.001
Published
2025-11-11
Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability affects Firefox < 145 and Thunderbird < 145.
CVSS Score
9.8
EPSS Score
0.001
Published
2025-11-11