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Vendor: Mozilla • 3,181 CVEs

CVEs (3,181)

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1Mozilla
1Firefox
Jun 17, 2026
Oct 14, 2025
N/A· v4
6.5 MEDIUM· v3
N/A· v2
When the address bar was hidden due to scrolling on Android, a malicious page could create a fake address bar to fool the user in response to a visibilitychange event. This vulnerability was fixed in Firefox 144.
1Mozilla
1Firefox
Jun 17, 2026
Oct 14, 2025
N/A· v4
9.1 CRITICAL· v3
N/A· v2
When switching between Android apps using the card carousel Firefox shows a black screen as its card image when a password-related screen was the last one being used. Prior to Firefox 144 the password edit screen was vis...Show more
When switching between Android apps using the card carousel Firefox shows a black screen as its card image when a password-related screen was the last one being used. Prior to Firefox 144 the password edit screen was visible. This vulnerability was fixed in Firefox 144.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Oct 14, 2025
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Links in a sandboxed iframe could open an external app on Android without the required "allow-" permission. This vulnerability was fixed in Firefox 144 and Thunderbird 144.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Oct 14, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Oct 14, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort...Show more
Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Oct 14, 2025
N/A· v4
8.1 HIGH· v3
N/A· v2
Insufficient escaping in the “Copy as cURL” feature could have been used to trick a user into executing unexpected code on Windows. This did not affect the application when running on other operating systems. This vulner...Show more
Insufficient escaping in the “Copy as cURL” feature could have been used to trick a user into executing unexpected code on Windows. This did not affect the application when running on other operating systems. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Oct 14, 2025
N/A· v4
6.1 MEDIUM· v3
N/A· v2
A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a sit...Show more
A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Oct 14, 2025
N/A· v4
6.5 MEDIUM· v3
N/A· v2
There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunder...Show more
There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Oct 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability was fixed in Firefox 144, Firefox ESR...Show more
A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Oct 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140...Show more
A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Oct 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Use-after-free in MediaTrackGraphImpl::GetInstance(). This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.
1Mozilla
1Firefox
Jun 17, 2026
Sep 30, 2025
N/A· v4
7.5 HIGH· v3
N/A· v2
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 143.0.3.
1Mozilla
1Firefox
Jun 17, 2026
Sep 30, 2025
N/A· v4
8.6 HIGH· v3
N/A· v2
Sandbox escape due to integer overflow in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143.0.3.
1Mozilla
1Firefox
Jun 17, 2026
Sep 30, 2025
N/A· v4
4.0 MEDIUM· v3
N/A· v2
Cookie storage for non-HTML temporary documents was being shared incorrectly with normal browsing content, allowing information from private tabs to escape Incognito mode even after the user closed all tabs. This vulnera...Show more
Cookie storage for non-HTML temporary documents was being shared incorrectly with normal browsing content, allowing information from private tabs to escape Incognito mode even after the user closed all tabs. This vulnerability was fixed in Firefox for iOS 143.1.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Sep 16, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Sep 16, 2025
N/A· v4
6.2 MEDIUM· v3
N/A· v2
Information disclosure in the Networking: Cache component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
1Mozilla
1Firefox
Jun 17, 2026
Sep 16, 2025
N/A· v4
7.5 HIGH· v3
N/A· v2
Information disclosure, mitigation bypass in the Privacy component in Firefox for Android. This vulnerability was fixed in Firefox 143.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Sep 16, 2025
N/A· v4
8.1 HIGH· v3
N/A· v2
Spoofing issue in the Site Permissions component. This vulnerability was fixed in Firefox 143 and Thunderbird 143.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Sep 16, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Integer overflow in the SVG component. This vulnerability was fixed in Firefox 143, Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Sep 16, 2025
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Incorrect boundary conditions in the JavaScript: GC component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.