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firefox

Vendor: Mozilla • 3,269 CVEs

CVEs (3,269)

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1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Mar 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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 with enough effort...Show more
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 with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.Show less
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Mar 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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 some of these could...Show more
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 some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.Show less
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Mar 24, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
9.1 CRITICAL· v3
N/A· v2
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.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
9.1 CRITICAL· v3
N/A· v2
Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
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.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Information disclosure in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Mar 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
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.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
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.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
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.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
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.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
1Mozilla
1Firefox
Jun 17, 2026
Mar 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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.