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CVE Vulnerability Database

Complete database of CVE vulnerabilities. Track critical security threats, exploits and patches. Updated daily from NVD NIST.

CVE-2026-4723

9.8

Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 149 and Thunderbird < 149.

Mozilla
Details

CVE-2026-4722

8.8

Privilege escalation in the IPC component. This vulnerability affects Firefox < 149 and Thunderbird < 149.

Mozilla
Details

CVE-2026-4721

9.8

Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we …

Firefox
Details

CVE-2026-4720

9.8

Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with …

Firefox
Details

CVE-2026-4719

7.5

Incorrect boundary conditions in the Graphics: Text component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

Firefox
Details

CVE-2026-4718

8.1

Undefined behavior in the WebRTC: Signaling component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

Firefox
Details

CVE-2026-4717

9.8

Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

Mozilla
Details

CVE-2026-4716

9.1

Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

Firefox
Details

CVE-2026-4715

9.1

Uninitialized memory in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

Mozilla
Details

CVE-2026-4714

7.5

Incorrect boundary conditions in the Audio/Video component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

Firefox
Details
134/3031