Vulnerability index

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Firefox HIGH 8.8
CVE-2026-6761

Privilege escalation in the Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 1…

Fix: 140.10.0 / 150.0+
Fix from $1,950 2026-04-21
Firefox HIGH 8.8
CVE-2026-6769

Privilege escalation in the Debugger component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140…

Fix: 140.10.0 / 150.0+
Fix from $1,950 2026-04-21
Firefox HIGH 7.5
CVE-2026-6766

Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, an…

Fix: 140.10.0 / 150.0+
Fix from $1,950 2026-04-21
Firefox MEDIUM 6.5
CVE-2026-6763

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 1…

Fix: 140.10.0 / 150.0+
Fix from $1,600 2026-04-21
Firefox MEDIUM 6.5
CVE-2026-6764

Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 1…

Fix: 140.10.0 / 150.0+
Fix from $1,600 2026-04-21
Firefox MEDIUM 6.5
CVE-2026-6770

Other issue in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 14…

Fix: 140.10.0 / 150.0+
Fix from $1,600 2026-04-21
Firefox MEDIUM 6.3
CVE-2026-6762

Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 15…

Fix: 140.10.0 / 150.0+
Fix from $1,600 2026-04-21
Firefox MEDIUM 5.3
CVE-2026-6765

Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderb…

Fix: 140.10.0 / 150.0+
Fix from $1,600 2026-04-21
Firefox MEDIUM 5.3
CVE-2026-6767

Other issue in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, …

Fix: 115.35.0 / 140.10.0+
Fix from $1,600 2026-04-21
Firefox CRITICAL 9.8
CVE-2026-6760

Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

Fix: 150.0+
Fix from $2,300 2026-04-21
Firefox HIGH 8.8
CVE-2026-6750

Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thund…

Fix: 115.35.0 / 140.10.0+
Fix from $1,950 2026-04-21
Firefox HIGH 7.5
CVE-2026-6754

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 1…

Fix: 115.35.0 / 140.10.0+
Fix from $1,950 2026-04-21
Firefox HIGH 7.5
CVE-2026-6756

Mitigation bypass in Firefox for Android. This vulnerability was fixed in Firefox 150.

Fix: 150.0+
Fix from $1,950 2026-04-21
Firefox HIGH 7.5
CVE-2026-6758

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

Fix: 150.0+
Fix from $1,950 2026-04-21
Firefox HIGH 7.5
CVE-2026-6759

Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.…

Fix: 140.10.0 / 150.0+
Fix from $1,950 2026-04-21
Firefox HIGH 7.3
CVE-2026-6751

Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and …

Fix: 140.10.0 / 150.0+
Fix from $1,950 2026-04-21
Firefox HIGH 7.3
CVE-2026-6752

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbi…

Fix: 115.35.0 / 140.10.0+
Fix from $1,950 2026-04-21
Firefox HIGH 7.3
CVE-2026-6753

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderb…

Fix: 140.10.0 / 150.0+
Fix from $1,950 2026-04-21
Firefox MEDIUM 6.5
CVE-2026-6755

Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

Fix: 150.0+
Fix from $1,600 2026-04-21
Firefox MEDIUM 6.3
CVE-2026-6757

Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thund…

Fix: 140.10.0 / 150.0+
Fix from $1,600 2026-04-21
Firefox CRITICAL 9.8
CVE-2026-6748

Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and …

Fix: 140.10.0 / 150.0+
Fix from $2,300 2026-04-21
Firefox HIGH 7.5
CVE-2026-6746

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 15…

Fix: 115.35.0 / 140.10.0+
Fix from $1,950 2026-04-21
Firefox HIGH 7.5
CVE-2026-6747

Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Fix: 140.10.0 / 150.0+
Fix from $1,950 2026-04-21
Firefox HIGH 7.5
CVE-2026-6749

Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.…

Fix: 115.35.0 / 140.10.0+
Fix from $1,950 2026-04-21
Thin Vec MEDIUM 5.1
CVE-2026-6654

Double-Free / Use-After-Free (UAF) in the `IntoIter::drop` and `ThinVec::clear` functions in the thin_vec crate. A panic in `ptr::drop_in_place` skip…

No fix yet
Fix from $1,600 2026-04-20
Firefox CRITICAL 9.8
CVE-2026-5731

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of th…

Mitigation only
Fix from $2,300 2026-04-07
Firefox CRITICAL 9.8
CVE-2026-5734

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed eviden…

Fix: 140.9.1 / 149.0.2+
Fix from $2,300 2026-04-07
Firefox CRITICAL 9.8
CVE-2026-5735

Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that wi…

Fix: 149.0.2+
Fix from $2,300 2026-04-07
Firefox HIGH 8.8
CVE-2026-5732

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 140.9.1…

Fix: 140.9.1 / 149.0.2+
Fix from $1,950 2026-04-07
Firefox HIGH 8.8
CVE-2026-5733

Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2.

Fix: 149.0.2+
Fix from $1,950 2026-04-07