Latest CVE Feed

Vulnerabilities published in the last 30 days. Filter by severity, exploit status, or attack vector.

Score
Vulnerability
Published
9.8 CRITICAL
CVE-2026-109780 — Mitigation bypass in the DOM: Core & HTML component

Mitigation bypass in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

firefox thunderbird | Remote | Misconfiguration
Oct 13, 2026 Oct 26, 2026
Oct 13, 2026
Oct 26, 2026
4.2 MEDIUM
CVE-2026-109779 — Race condition in the Networking: DNS component

Race condition in the Networking: DNS component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

firefox thunderbird | Remote | Race Condition
Oct 13, 2026 Oct 13, 2026
Oct 13, 2026
Oct 13, 2026
8.8 HIGH
CVE-2026-109778 — Privilege escalation in the WebExtensions component

Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

firefox thunderbird | Remote | Authorization
Oct 13, 2026 Oct 14, 2026
Oct 13, 2026
Oct 14, 2026
4.3 MEDIUM
CVE-2026-109777 — Information disclosure in the Storage: IndexedDB component

Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

firefox thunderbird | Remote | Information Disclosure
Oct 13, 2026 Oct 13, 2026
Oct 13, 2026
Oct 13, 2026
4.2 MEDIUM
CVE-2026-109776 — Race condition in the XPCOM component

Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

firefox thunderbird | Remote | Race Condition
Oct 13, 2026 Oct 15, 2026
Oct 13, 2026
Oct 15, 2026
6.5 MEDIUM
CVE-2026-109775 — Denial-of-service in the WebRTC component

Denial-of-service in the WebRTC component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

firefox thunderbird | Remote | Denial of Service
Oct 13, 2026 Oct 13, 2026
Oct 13, 2026
Oct 13, 2026
9.8 CRITICAL
CVE-2026-109774 — Invalid pointer, undefined behavior in the DOM: Notifications component

Invalid pointer, undefined behavior in the DOM: Notifications component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

firefox thunderbird | Remote | Memory Corruption
Oct 13, 2026 Oct 26, 2026
Oct 13, 2026
Oct 26, 2026
6.5 MEDIUM
CVE-2026-109773 — Denial-of-service in the Sync component

Denial-of-service in the Sync component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

firefox thunderbird | Remote | Denial of Service
Oct 13, 2026 Oct 13, 2026
Oct 13, 2026
Oct 13, 2026
9.1 CRITICAL
CVE-2026-109772 — Same-origin policy bypass in the DevTools component

Same-origin policy bypass in the DevTools component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

firefox thunderbird | Remote | Misconfiguration
Oct 13, 2026 Oct 26, 2026
Oct 13, 2026
Oct 26, 2026
4.3 MEDIUM
CVE-2026-109771 — Information disclosure in the WebRTC: Networking component

Information disclosure in the WebRTC: Networking component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

firefox thunderbird | Remote | Information Disclosure
Oct 13, 2026 Oct 13, 2026
Oct 13, 2026
Oct 13, 2026
6.1 MEDIUM
CVE-2026-109770 — Spoofing issue in the DOM: Web Serial component

Spoofing issue in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

firefox thunderbird | Remote | Misconfiguration
Oct 13, 2026 Oct 19, 2026
Oct 13, 2026
Oct 19, 2026
4.3 MEDIUM
CVE-2026-109769 — Information disclosure in the Networking: Cache component

Information disclosure in the Networking: Cache component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

firefox thunderbird | Remote | Information Disclosure
Oct 13, 2026 Oct 13, 2026
Oct 13, 2026
Oct 13, 2026
6.5 MEDIUM
CVE-2026-109768 — Denial-of-service in the Site Reports component

Denial-of-service in the Site Reports component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

firefox thunderbird | Remote | Denial of Service
Oct 13, 2026 Oct 13, 2026
Oct 13, 2026
Oct 13, 2026
4.3 MEDIUM
CVE-2026-109767 — Information disclosure in the Networking component

Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

firefox thunderbird | Remote | Information Disclosure
Oct 13, 2026 Oct 13, 2026
Oct 13, 2026
Oct 13, 2026
8.1 HIGH
CVE-2026-109766 — Mitigation bypass in the Enterprise Policies component

Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

firefox thunderbird | Remote
Oct 13, 2026 Oct 19, 2026
Oct 13, 2026
Oct 19, 2026
4.2 MEDIUM
CVE-2026-109765 — Race condition, use-after-free in the Graphics: Text component

Race condition, use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

firefox thunderbird | Remote | Memory Corruption
Oct 13, 2026 Oct 13, 2026
Oct 13, 2026
Oct 13, 2026
5.4 MEDIUM
CVE-2026-109764 — Mitigation bypass in the Enterprise Policies component

Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

firefox thunderbird | Remote | Misconfiguration
Oct 13, 2026 Oct 19, 2026
Oct 13, 2026
Oct 19, 2026
5.4 MEDIUM
CVE-2026-109763 — Mitigation bypass in the File Handling component

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

firefox thunderbird | Remote | Misconfiguration
Oct 13, 2026 Oct 30, 2026
Oct 13, 2026
Oct 30, 2026
8.8 HIGH
CVE-2026-109762 — Incorrect boundary conditions in the SVG component

Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

firefox thunderbird | Remote | Memory Corruption
Oct 13, 2026 Oct 19, 2026
Oct 13, 2026
Oct 19, 2026
5.4 MEDIUM
CVE-2026-109761 — Use-after-free in the JavaScript: WebAssembly component

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

firefox thunderbird | Remote | Memory Corruption
Oct 13, 2026 Oct 13, 2026
Oct 13, 2026
Oct 13, 2026
Showing 20 of 18767 Results