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-2026-16401 — Privilege escalation in the Data Loss Prevention component

Privilege escalation in the Data Loss Prevention component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Authorization
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
7.5 HIGH
CVE-2026-16400 — Information disclosure in the DOM: Security component

Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Information Disclosure
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
7.5 HIGH
CVE-2026-16399 — Site isolation issue in the DOM: Navigation component

Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Misconfiguration
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
7.5 HIGH
CVE-2026-16398 — Site isolation issue in the Graphics component

Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Misconfiguration
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
6.5 MEDIUM
CVE-2026-16397 — Clickjacking issue in the WebExtensions component in Firefox for Android

Clickjacking issue in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 153.

firefox | Remote | Misconfiguration
Jul 21, 2026 Jul 22, 2026
Jul 21, 2026
Jul 22, 2026
9.8 CRITICAL
CVE-2026-16396 — Privilege escalation in WebExtensions

Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

firefox thunderbird | Remote | Authorization
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
9.8 CRITICAL
CVE-2026-16395 — Integer overflow in the Audio/Video component

Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Memory Corruption
Jul 21, 2026 Jul 22, 2026
Jul 21, 2026
Jul 22, 2026
9.1 CRITICAL
CVE-2026-16394 — Mitigation bypass in the DOM: Security component

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Misconfiguration
Jul 21, 2026 Jul 22, 2026
Jul 21, 2026
Jul 22, 2026
9.1 CRITICAL
CVE-2026-16393 — Incorrect boundary conditions in the Graphics: WebGPU component

Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Memory Corruption
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
9.1 CRITICAL
CVE-2026-16392 — JIT miscompilation in the JavaScript Engine: JIT component

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Memory Corruption
Jul 21, 2026 Jul 28, 2026
Jul 21, 2026
Jul 28, 2026
7.5 HIGH
CVE-2026-16391 — Information disclosure in the Storage: IndexedDB component

Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

firefox thunderbird | Remote | Information Disclosure
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
9.1 CRITICAL
CVE-2026-16390 — Mitigation bypass in the Enterprise Policies component

Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

firefox thunderbird | Remote | Misconfiguration
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
9.8 CRITICAL
CVE-2026-16389 — Incorrect boundary conditions, integer overflow in the Libraries component in NSS

Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Memory Corruption
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
9.8 CRITICAL
CVE-2026-16388 — Sandbox escape in the DOM: Networking component

Sandbox escape in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Denial of Service
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
9.8 CRITICAL
CVE-2026-16387 — Site isolation issue in the Networking component

Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

firefox thunderbird | Remote | Misconfiguration
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
7.5 HIGH
CVE-2026-16386 — Information disclosure due to uninitialized memory in the Graphics: WebGPU component

Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Information Disclosure
Jul 21, 2026 Jul 27, 2026
Jul 21, 2026
Jul 27, 2026
7.5 HIGH
CVE-2026-16385 — Information disclosure due to uninitialized memory in the Graphics: WebGPU component

Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Information Disclosure
Jul 21, 2026 Jul 27, 2026
Jul 21, 2026
Jul 27, 2026
7.5 HIGH
CVE-2026-16384 — Information disclosure due to uninitialized memory in the Graphics: WebGPU component

Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Information Disclosure
Jul 21, 2026 Jul 27, 2026
Jul 21, 2026
Jul 27, 2026
9.8 CRITICAL
CVE-2026-16383 — Mitigation bypass in the DOM: Networking component

Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

firefox thunderbird | Remote | Misconfiguration
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
9.8 CRITICAL
CVE-2026-16382 — Mitigation bypass in the DOM: Service Workers component

Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

firefox thunderbird | Remote | Misconfiguration
Jul 21, 2026 Jul 24, 2026
Jul 21, 2026
Jul 24, 2026
Showing 20 of 9591 Results