CVE-2026-100831 Use-after-free in the DOM: UI Events & Focus Handling component

Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157...

CVE-2026-100831 Use-after-free in the DOM: UI Events & Focus Handling component

Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157...

EUVD-2026-88809

Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157...

CVE-2026-100831

Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157...

CVE-2026-100831

A use-after-free vulnerability exists in the DOM: UI Events & Focus Handling component of the Firefox browser. The flaw was addressed in Firefox ESR 153.4 and Firefox 157 . No specific exploit details or in-the-wild exploitation instances are provided in the documents.

CVE-2026-100831: Use After Free

Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157...

PT-2026-102604

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 157 Firefox ESR versions prior to 153.4 Thunderbird versions prior to 157 Description A use-after-free issue exists in the DOM: UI Events & Focus Handling component. A use-after-free is a memory corruption flaw that...

CVE-2026-84135

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Other issue in Firefox Focus for Android...

Astra Linux – Vulnerability in Firefox

Under specific circumstances, a WebExtension may receive a jar:file:/// URI instead of a moz-extension:/// URI during a load request. This allows directory paths to be accessed on the user’s machine. This vulnerability affects Firefox for Android 112, Firefox 112, and Focus for Android 112...

Astra Linux – Vulnerability in Firefox and Thunderbird

When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character. This could lead to reflected file download attacks that potentially trick users into installing malware. This vulnerability affects Firefox 112, Focu...

Astra Linux – Vulnerability in Firefox

Under certain circumstances, calling the bind function might result in an incorrect realm being set. This could create a vulnerability related to JavaScript-implemented sandboxes, such as SES. This vulnerability affects Firefox for Android 112, Firefox 112, and Focus for Android 112...

Astra Linux – Vulnerability in Firefox

Memory safety bugs exist in Firefox 111. Some of these bugs exhibited signs of memory corruption, and we assume that with sufficient effort, some of these bugs could have been exploited to execute arbitrary code. This vulnerability affects Firefox for Android 112, Firefox 112, and Focus for Andro...

firefox: thunderbird: Information disclosure in the DOM: UI Events & Focus Handling component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure in the DOM: UI Events & Focus Handling component...

firefox: thunderbird: Information disclosure in the DOM: UI Events & Focus Handling component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure in the DOM: UI Events & Focus Handling component...

firefox: thunderbird: Information disclosure in the DOM: UI Events & Focus Handling component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure in the DOM: UI Events & Focus Handling component...

firefox: thunderbird: Information disclosure in the DOM: UI Events & Focus Handling component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure in the DOM: UI Events & Focus Handling component...

firefox: thunderbird: Information disclosure in the DOM: UI Events & Focus Handling component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure in the DOM: UI Events & Focus Handling component...

firefox: thunderbird: Information disclosure in the DOM: UI Events & Focus Handling component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure in the DOM: UI Events & Focus Handling component...

firefox: thunderbird: Information disclosure in the DOM: UI Events & Focus Handling component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure in the DOM: UI Events & Focus Handling component...

firefox: thunderbird: Information disclosure in the DOM: UI Events & Focus Handling component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure in the DOM: UI Events & Focus Handling component...