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Vendor: Mozilla • 3,473 CVEs

CVEs (3,473)

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1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Memory safety bugs present in Thunderbird ESR 140.12. 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 vul...Show more
Memory safety bugs present in Thunderbird ESR 140.12. 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 ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13.Show less
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Memory safety bugs present in Thunderbird ESR 140.12 and Thunderbird 152. 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 arbi...Show more
Memory safety bugs present in Thunderbird ESR 140.12 and Thunderbird 152. 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 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.Show less
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.1 CRITICAL· v3
N/A· v2
Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Site isolation issue in the Graphics: WebRender component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Invalid pointer in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Incorrect boundary conditions in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
2Firefox
Thunderbird
Oct 24, 2026
Jul 21, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
1Mozilla
1Firefox
Jul 22, 2026
Jul 14, 2026
N/A· v4
5.4 MEDIUM· v3
N/A· v2
We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 115.38, Firefox ESR 140.13, and Thunde...Show more
We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13.Show less
1Mozilla
1Firefox
Jul 22, 2026
Jul 14, 2026
N/A· v4
4.3 MEDIUM· v3
N/A· v2
We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 140.13, and Thunderbird 140.13.
1Mozilla
1Firefox
Oct 25, 2026
Jul 7, 2026
N/A· v4
6.3 MEDIUM· v3
N/A· v2
A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar while continuing to render attacker-contr...Show more
A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 152.3.Show less
1Mozilla
1Firefox
Oct 25, 2026
Jun 30, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Memory safety bugs present in Firefox 152.0.3. 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 152.0.3. 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 152.0.4.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Jun 16, 2026
N/A· v4
5.4 MEDIUM· v3
N/A· v2
Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.
1Mozilla
2Firefox
Thunderbird
Oct 25, 2026
Jun 16, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12.