macOS · Application version · May 6, 2026

Mozilla Firefox 150.0.2

Mozilla Firefox 150.0.2, released May 6, 2026, fixes 246 CVEs in Mozilla Firefox. None of them is reported as exploited. Patch Radar priority: Urgent. The latest Mozilla Firefox is 159.0.1, which also fixes every one of these CVEs.

Urgent

Superseded. The latest Mozilla Firefox is 159.0.1, which also fixes every CVE on this page. Install that instead.

CVEs closed
246
27 rated Critical
Exploited
0
None reported
Highest CVSS
10.0
Base score, 0 to 10
Highest EPSS
0.0388
90th percentile

Priority of the 246 CVEs

Patch now 0 Urgent 27 High 202 Routine 17

Applies to

ProductVersion
Mozilla Firefox150.0.2

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2026-2796 JIT miscompilation in the JavaScript: WebAssembly component9.8 0.0095 None reported
Urgent CVE-2026-2805 Invalid pointer in the DOM: Core & HTML component9.8 0.0066 None reported
Urgent CVE-2026-4723 Use-after-free in the JavaScript Engine component9.8 0.0062 None reported
Urgent CVE-2026-2799 Use-after-free in the DOM: Core & HTML component9.8 0.0054 None reported
Urgent CVE-2026-2797 Use-after-free in the JavaScript: GC component9.8 0.0053 None reported
Urgent CVE-2025-9187 Memory safety bugs fixed in Firefox 142 and Thunderbird 1429.8 0.0052 None reported
Urgent CVE-2026-4724 Undefined behavior in the Audio/Video component9.1 0.0051 None reported
Urgent CVE-2025-14326 Use-after-free in the Audio/Video: GMP component9.8 0.0049 None reported
Urgent CVE-2025-8044 Memory safety bugs fixed in Firefox 141 and Thunderbird 1419.8 0.0048 None reported
Urgent CVE-2026-2806 Uninitialized memory in the Graphics: Text component9.1 0.0045 None reported
Urgent CVE-2026-0892 Memory safety bugs fixed in Firefox 147 and Thunderbird 1479.8 0.0045 None reported
Urgent CVE-2025-8043 Incorrect URL truncation9.8 0.0043 None reported
Urgent CVE-2025-13021 Incorrect boundary conditions in the Graphics: WebGPU component9.8 0.0038 None reported
Urgent CVE-2025-13022 Incorrect boundary conditions in the Graphics: WebGPU component9.8 0.0038 None reported
Urgent CVE-2025-13023 Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component9.8 0.0038 None reported
Urgent CVE-2025-13024 JIT miscompilation in the JavaScript Engine: JIT component9.8 0.0038 None reported
Urgent CVE-2025-13026 Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component9.8 0.0038 None reported
Urgent CVE-2026-2800 Spoofing issue in the WebAuthn component in Firefox for Android9.8 0.0035 None reported
Urgent CVE-2026-0881 Sandbox escape in the Messaging System component10.0 0.0035 None reported
Urgent CVE-2026-4729 Memory safety bugs fixed in Firefox 149 and Thunderbird 1499.8 0.0034 None reported
Urgent CVE-2026-4725 Sandbox escape due to use-after-free in the Graphics: Canvas2D component10.0 0.0033 None reported
Urgent CVE-2025-14860 Use-after-free in the Disability Access APIs component9.8 0.0032 None reported
Urgent CVE-2026-2795 Use-after-free in the JavaScript: GC component9.8 0.0030 None reported
Urgent CVE-2026-2807 Memory safety bugs fixed in Firefox 148 and Thunderbird 1489.8 0.0029 None reported
Urgent CVE-2026-6768 Mitigation bypass in the Networking: Cookies component9.8 0.0029 None reported
Showing 1 to 25 of 246 1Next

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