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Filtering by weakness Use After FreeCWE-416 × clear
Top technology Linux 13140 Google 12525 Microsoft 12378 Apple 6692 Oracle 6649 Adobe 6383 Ibm 6266 Cisco 5746 Debian 3919 Apache 2864 Mozilla 2857 Redhat 2581
Firefox CRITICAL 9.8
CVE-2026-4701

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 1…

Fix: 140.9.0 / 149.0+
Fix from $2,300 2026-03-24
Firefox CRITICAL 9.8
CVE-2026-4696

Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbi…

Fix: 115.34.0 / 140.9.0+
Fix from $2,300 2026-03-24
Firefox CRITICAL 10.0
CVE-2026-4688

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunder…

Fix: 140.9.0 / 149.0+
Fix from $2,300 2026-03-24
Firefox CRITICAL 9.8
CVE-2026-4691

Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thun…

Fix: 115.34.0 / 140.9.0+
Fix from $2,300 2026-03-24
Firefox HIGH 7.5
CVE-2026-4684

Race condition, use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140…

Fix: 115.34.0 / 140.9.0+
Fix from $1,950 2026-03-24
Firefox HIGH 8.8
CVE-2026-3847

Memory safety bugs present in Firefox 148.0.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of…

Fix: 148.0.2+
Fix from $1,950 2026-03-10
Firefox CRITICAL 9.8
CVE-2026-2795

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Fix: 148.0+
Fix from $2,300 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2797

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Fix: 148.0+
Fix from $2,300 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2799

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Fix: 148.0+
Fix from $2,300 2026-02-24
Firefox HIGH 8.8
CVE-2026-2798

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Fix: 148.0+
Fix from $1,950 2026-02-24
Firefox MEDIUM 5.4
CVE-2026-2804

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Fix: 148.0+
Fix from $1,600 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2786

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 1…

Fix: 140.8.0 / 148.0+
Fix from $2,300 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2787

Use-after-free in the DOM: Window and Location component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunder…

Fix: 115.33.0 / 140.8.0+
Fix from $2,300 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2789

Use-after-free in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 1…

Fix: 115.33.0 / 140.8.0+
Fix from $2,300 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2767

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunder…

Fix: 140.8.0 / 148.0+
Fix from $2,300 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2770

Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbi…

Fix: 115.33.0 / 140.8.0+
Fix from $2,300 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2772

Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbir…

Fix: 115.33.0 / 140.8.0+
Fix from $2,300 2026-02-24
Firefox HIGH 8.8
CVE-2026-2769

Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 1…

Fix: 115.33.0 / 140.8.0+
Fix from $1,950 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2758

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, …

Fix: 115.33.0 / 140.8.0+
Fix from $2,300 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2763

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 14…

Fix: 115.33.0 / 140.8.0+
Fix from $2,300 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2764

JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox …

Fix: 115.33.0 / 140.8.0+
Fix from $2,300 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2765

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 1…

Fix: 140.8.0 / 148.0+
Fix from $2,300 2026-02-24
Firefox CRITICAL 9.8
CVE-2026-2766

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderb…

Fix: 140.8.0 / 148.0+
Fix from $2,300 2026-02-24
Firefox HIGH 8.8
CVE-2026-24869

Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability was fixed in Firefox 147.0.2.

Fix: 147.0.2+
Fix from $1,950 2026-01-27
Firefox MEDIUM 6.5
CVE-2026-0885

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.…

Fix: 140.7.0 / 147.0+
Fix from $1,600 2026-01-13
Firefox CRITICAL 9.8
CVE-2026-0884

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 1…

Fix: 140.7.0 / 147.0+
Fix from $2,300 2026-01-13
Firefox HIGH 8.8
CVE-2026-0882

Use-after-free in the IPC component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunder…

Fix: 115.32.0 / 140.7.0+
Fix from $1,950 2026-01-13
Firefox CRITICAL 9.8
CVE-2025-14860

Use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 146.0.1.

Fix: 146.0.1+
Fix from $2,300 2025-12-18
Firefox CRITICAL 9.8
CVE-2025-14326

Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.

Fix: 146.0+
Fix from $2,300 2025-12-09
Firefox CRITICAL 9.8
CVE-2025-14321

Use-after-free in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 1…

Fix: 140.6.0 / 146.0+
Fix from $2,300 2025-12-09