EUVD-2025-34200

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 affects Firefox...

EUVD-2025-34202

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 vulnerabilit...

EUVD-2025-34180

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 affects Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4...

EUVD-2025-34199

Links in a sandboxed iframe could open an external app on Android without the required "allow-" permission. This vulnerability affects Firefox 144 and Thunderbird 144...

CVE-2025-11717

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...

CVE-2025-11711

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...

CVE-2025-11710

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 affects Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4...

CVE-2025-11710

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...

DEBIAN-CVE-2025-11710

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...

CVE-2025-11713

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 affects Firefox 144, Firefox ESR 140.4, Thunderbird 144, and...

CVE-2025-11712

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 vulnerabilit...

CVE-2025-11708

Use-after-free in MediaTrackGraphImpl::GetInstance. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4...

CVE-2025-11708

Use-after-free in MediaTrackGraphImpl::GetInstance This vulnerability affects Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4...

UBUNTU-CVE-2025-11711

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability affects Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4...

UBUNTU-CVE-2025-11709

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 affects Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4...

CVE-2025-11718

CVE-2025-11718 affects Mozilla Firefox versions earlier than 144. The issue allows a malicious page to spoof the address bar by creating a fake bar in response to a visibilitychange event when the Android address bar is hidden after scrolling. Impact is spoofing UI and potential user deception; n...

CVE-2025-11715 Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144

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...

CVE-2025-11713 Potential user-assisted code execution in “Copy as cURL” command

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...

CVE-2025-11712

The CVE-2025-11712 entry is supported by connected documents describing the same issue across Mozilla products. Affected software for this CVE includes Firefox and Thunderbird prior to version 144 (Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, Thunderbird

CVE-2025-11708

CVE-2025-11708 is a use-after-free in MediaTrackGraphImpl::GetInstance() affecting Firefox before version 144, Firefox ESR before 140.4, Thunderbird before 144, and Thunderbird before 140.4. Connected advisories corroborate multiple vendors and distributions addressing these Firefox/Thunderbird m...