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firefox

Vendor: Mozilla • 3,473 CVEs

CVEs (3,473)

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1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Sep 21, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Undefined behavior in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
10.0 CRITICAL· v3
N/A· v2
Sandbox escape in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 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 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 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 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Integer overflow in the JavaScript: Standard Library component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
10.0 CRITICAL· v3
N/A· v2
Sandbox escape in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
10.0 CRITICAL· v3
N/A· v2
Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
1Mozilla
1Firefox
Jun 17, 2026
Feb 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnera...Show more
Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability was fixed in Firefox for iOS 147.4.Show less
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Feb 16, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap buffer overflow in libvpx. This vulnerability was fixed in Firefox 147.0.4, Firefox ESR 140.7.1, Firefox ESR 115.32.1, Thunderbird 140.7.2, and Thunderbird 147.0.2.
1Mozilla
1Firefox
Jun 17, 2026
Feb 16, 2026
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Malicious scripts that interrupt new tab page loading could cause desynchronization between the address bar and page content, allowing the attacker to spoof arbitrary HTML under a trusted domain. This vulnerability was f...Show more
Malicious scripts that interrupt new tab page loading could cause desynchronization between the address bar and page content, allowing the attacker to spoof arbitrary HTML under a trusted domain. This vulnerability was fixed in Firefox for iOS 147.2.1.Show less