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firefox

Vendor: Mozilla • 3,181 CVEs

CVEs (3,181)

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1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 21, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 21, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 21, 2026
N/A· v4
6.3 MEDIUM· v3
N/A· v2
Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 21, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 21, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 21, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 21, 2026
N/A· v4
6.3 MEDIUM· v3
N/A· v2
Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
1Firefox
Jun 17, 2026
Apr 21, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Mitigation bypass in Firefox for Android. This vulnerability was fixed in Firefox 150.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 21, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Apr 21, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Apr 21, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Apr 21, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Apr 21, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Apr 21, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Apr 21, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Apr 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Apr 21, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Apr 21, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Apr 7, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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 exploited to run arbitra...Show more
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 exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2.Show less