CVE-2025-6425

An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability affects Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12,...

CVE-2025-6426

The executable file warning did not warn users before opening files with the terminal extension. This bug only affects Firefox for macOS. Other versions of Firefox are unaffected. This vulnerability affects Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12...

DEBIAN-CVE-2025-6425

An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR...

UBUNTU-CVE-2025-6425

An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability affects Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12,...

UBUNTU-CVE-2025-6426

The executable file warning did not warn users before opening files with the terminal extension. This bug only affects Firefox for macOS. Other versions of Firefox are unaffected. This vulnerability affects Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12...

UBUNTU-CVE-2025-6435

If a user saved a response from the Network tab in Devtools using the Save As context menu option, that file may not have been saved with the .download file extension. This could have led to the user inadvertently running a malicious executable. This vulnerability affects Firefox 140 and...

CVE-2025-6435

CVE-2025-6435 corresponds to a Mozilla Firefox/Thunderbird issue where saving a response from Devtools Network tab via the Save As menu may fail to preserve the .download extension. This could allow a user to inadvertently run a malicious executable. The FreeBSD advisory also notes memory safety ...

CVE-2025-6435 Save as in Devtools could download files without sanitizing the extension

If a user saved a response from the Network tab in Devtools using the Save As context menu option, that file may not have been saved with the .download file extension. This could have led to the user inadvertently running a malicious executable. This vulnerability was fixed in Firefox 140 and...

CVE-2025-6435

If a user saved a response from the Network tab in Devtools using the Save As context menu option, that file may not have been saved with the .download file extension. This could have led to the user inadvertently running a malicious executable. This vulnerability was fixed in Firefox 140 and...

CVE-2025-6435 Save as in Devtools could download files without sanitizing the extension

If a user saved a response from the Network tab in Devtools using the Save As context menu option, that file may not have been saved with the .download file extension. This could have led to the user inadvertently running a malicious executable. This vulnerability was fixed in Firefox 140 and...

CVE-2025-6435

If a user saved a response from the Network tab in Devtools using the Save As context menu option, that file may not have been saved with the .download file extension. This could have led to the user inadvertently running a malicious executable. This vulnerability was fixed in Firefox 140 and...

CVE-2025-6426

The executable file warning did not warn users before opening files with the terminal extension. This bug only affects Firefox for macOS. Other versions of Firefox are unaffected.. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12...

CVE-2025-6426

The CVE-2025-6426 issue affects Firefox for macOS where opening files with the terminal extension did not warn the user. Connected advisories confirm affected products and versions: Firefox before 140 and Firefox ESR before 128.12, Thunderbird before 140 and Thunderbird before 128.12. The root ca...

CVE-2025-6425

CVE-2025-6425 concerns a WebCompat WebExtension issue in Firefox/Thunderbird where enumerating resources could obtain a persistent, browser-identifying UUID that remains across containers and normal/private browsing (not in profiles). Affected: Firefox < 140, Firefox ESR < 115.25, Firefox E...

CVE-2025-6425

An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR...

CVE-2025-6425 The WebCompat WebExtension shipped with Firefox exposed a persistent UUID

An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR...

CVE-2025-6425 The WebCompat WebExtension shipped with Firefox exposed a persistent UUID

An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR...

PT-2025-26732

Name of the Vulnerable Software and Affected Versions: Firefox versions prior to 140 Description: The issue arises when a user saves a response from the Network tab in Devtools using the Save As context menu option. In this scenario, the saved file may not have the .download file extension,...

Mozilla -- persistent UUID that identifies browser

[email protected] reports: An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability affects Firefox 140, Firefox E...

Mozilla Firefox ESR < 115.25

The version of Firefox ESR installed on the remote Windows host is prior to 115.25. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-52 advisory. - A use-after-free in FontFaceSet resulted in a potentially exploitable crash. CVE-2025-6424 - An attacker who...