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Vendor: Mozilla • 3,269 CVEs

CVEs (3,269)

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CVE-2026-8955
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
May 19, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
CVE-2026-8954
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
May 19, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Incorrect boundary conditions, integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
CVE-2026-8953
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
May 19, 2026
N/A· v4
9.6 CRITICAL· v3
N/A· v2
Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
CVE-2026-8952
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
May 19, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
CVE-2026-8951
1Mozilla
1Firefox
Jun 17, 2026
May 19, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Spoofing issue in the Toolbar component in Firefox for Android. This vulnerability was fixed in Firefox 151.
CVE-2026-8950
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
May 19, 2026
N/A· v4
9.3 CRITICAL· v3
N/A· v2
Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
CVE-2026-8949
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
May 19, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Integer overflow in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
CVE-2026-8948
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
May 19, 2026
N/A· v4
9.1 CRITICAL· v3
N/A· v2
Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
CVE-2026-8947
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
May 19, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
CVE-2026-8946
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
May 19, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
CVE-2026-8945
1Mozilla
2Firefox
Firefox Focus
Jul 15, 2026
May 19, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Sandbox escape in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 151.
CVE-2026-8401
1Mozilla
1Firefox
Jul 15, 2026
May 12, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.
CVE-2026-8391
1Mozilla
1Firefox
Jul 15, 2026
May 12, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.
CVE-2026-8390
1Mozilla
1Firefox
Jul 15, 2026
May 12, 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 150.0.3.
CVE-2026-8389
1Mozilla
1Firefox
Jul 15, 2026
May 12, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.
CVE-2026-8388
1Mozilla
1Firefox
Jul 15, 2026
May 12, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.
CVE-2026-8094
1Mozilla
2Firefox
Thunderbird
Jul 28, 2026
May 7, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2.
CVE-2026-8093
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
May 7, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox 150.0.1. 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 vulnerabil...Show more
Memory safety bugs present in Firefox 150.0.1. 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 150.0.2 and Thunderbird 150.0.2.Show less
CVE-2026-8092
1Mozilla
2Firefox
Thunderbird
Jul 28, 2026
May 7, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been e...Show more
Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. 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 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.Show less
CVE-2026-8091
1Mozilla
2Firefox
Thunderbird
Aug 11, 2026
May 7, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2.