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firefox

Vendor: Mozilla • 3,473 CVEs

CVEs (3,473)

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1Mozilla
1Firefox
Jul 15, 2026
Jan 27, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability was fixed in Firefox 147.0.2.
1Mozilla
1Firefox
Jun 17, 2026
Jan 27, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Mitigation bypass in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 147.0.2.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Jan 13, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Memory safety bugs present in Firefox 146 and Thunderbird 146. 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....Show more
Memory safety bugs present in Firefox 146 and Thunderbird 146. 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 147 and Thunderbird 147.Show less
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Jan 13, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. 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 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. 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 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Jan 13, 2026
N/A· v4
5.4 MEDIUM· v3
N/A· v2
Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Jan 13, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Denial-of-service in the DOM: Service Workers component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Jan 13, 2026
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Information disclosure in the XML component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Jan 13, 2026
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Jan 13, 2026
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Jan 13, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Jan 13, 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 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Jan 13, 2026
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Jan 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Use-after-free in the IPC component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Jan 13, 2026
N/A· v4
10.0 CRITICAL· v3
N/A· v2
Sandbox escape in the Messaging System component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Jan 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Sandbox escape due to integer overflow in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Jan 13, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Jan 13, 2026
N/A· v4
8.0 HIGH· v3
N/A· v2
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
1Mozilla
2Firefox
Thunderbird
Jul 15, 2026
Jan 13, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
1Mozilla
1Firefox
Oct 5, 2026
Dec 18, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox 146. 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...Show more
Memory safety bugs present in Firefox 146. 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 146.0.1.Show less
1Mozilla
1Firefox
Oct 5, 2026
Dec 18, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 146.0.1.