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OpenAdvisories

Vendor

Mozilla

2,559 known vulnerabilities.

Products

Firefox 2,316 Thunderbird 1,814 Firefox ESR 712 Firefox for iOS 63 Firefox for Android 33 Focus for Android 17 Thunderbird ESR 13 Focus for iOS 13 NSS 6 Focus 3 WebThings Gateway 2 Mozilla Bleach 2 Hubs Cloud 2 Mozilla VPN 2 Node-convict 1 Network Security Services (NSS) 1 thin-vec 1 Mozilla VPN 2.28.0 1 hawk 1 rhino 1 Firefox for 1 geckodriver 1 common-voice 1 Convict 1 Bugzilla 1 Persona 1 Network Security Services 1 Nunjucks 1 Klar for iOS 1 neqo 1 Mozilla VPN iOS 1.0.7 1 Mozilla VPN Windows 1 Mozilla VPN Android 1.1.0 1 sccache 1 Mozilla VPN 2.16.1 1 PollBot 1 Thunderbird < 102.8 0 Thunderbird < 102.9 0 Thunderbird < 102.9.1 0 Firefox < 110.1.0 Android 0
All Critical High Medium Low Exploited only Public exploit

2,559 results · Feed

  • High 8.8
    CVE-2026-100807

    Privilege escalation in the DOM: Service Workers component

    Privilege escalation in the DOM: Service Workers component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100808

    Mitigation bypass in the DOM: Service Workers component

    Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Medium 4.3
    CVE-2026-100806

    Uninitialized memory in the Graphics: WebGPU component

    Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 7.5
    CVE-2026-100805

    Race condition, use-after-free in the Audio/Video component

    Race condition, use-after-free in the Audio/Video component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Ubuntu
  • High 8.1
    CVE-2026-100803

    Same-origin policy bypass in the WebExtensions component

    Same-origin policy bypass in the WebExtensions component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Critical 9.6
    CVE-2026-100804

    Sandbox escape due to use-after-free in the Preferences: Backend component

    Sandbox escape due to use-after-free in the Preferences: Backend component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Ubuntu
  • Medium 4.3
    CVE-2026-100802

    Uninitialized memory in the Graphics: WebGPU component

    Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Ubuntu
  • High 8.8
    CVE-2026-100801

    Privilege escalation in the DLL Services component

    Privilege escalation in the DLL Services component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 159, Firefox ESR 153.6, Thunderbird 159, Thunderbird 153.6, Firefox 157, and Firefox ESR 140…

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Critical 9.6
    CVE-2026-100800

    Sandbox escape due to use-after-free in the Disability Access APIs component

    Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.1
    CVE-2026-100798

    Cryptography misuse in Storage: Quota Manager component

    Cryptography misuse in Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Medium 4.3
    CVE-2026-100799

    Uninitialized memory in the Graphics: WebGPU component

    Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Ubuntu
  • High 8.8
    CVE-2026-100796

    Use-after-free in the JavaScript: WebAssembly component

    Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Ubuntu
  • High 8.8
    CVE-2026-100797

    Privilege escalation due to use-after-free in the Graphics: WebRender component

    Privilege escalation due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Medium 6.5
    CVE-2026-100795

    Denial-of-service in the Networking component

    Denial-of-service in the Networking component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Ubuntu
  • Medium 4.3
    CVE-2026-96869

    Information disclosure in the Networking component

    Information disclosure in the Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Medium 6.5
    CVE-2026-100793

    JIT miscompilation in the JavaScript Engine component

    JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Ubuntu
  • Critical 9.6
    CVE-2026-100794

    Sandbox escape due to incorrect boundary conditions in the Internationalization component

    Sandbox escape due to incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 7.1
    CVE-2026-100792

    JIT miscompilation in the JavaScript: WebAssembly component

    JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100791

    Use-after-free in the DOM: Core & HTML component

    Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100790

    Use-after-free in the XSLT component

    Use-after-free in the XSLT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100789

    Use-after-free in the Graphics: Canvas2D component

    Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Critical 9.8
    CVE-2026-100788

    Invalid pointer in the JavaScript: WebAssembly component

    Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Critical 9.6
    CVE-2026-100787

    Sandbox escape in the XUL component

    Sandbox escape in the XUL component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Critical 9.6
    CVE-2026-100786

    Sandbox escape due to use-after-free in the Graphics component

    Sandbox escape due to use-after-free in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100785

    Use-after-free in the DOM: Core & HTML component

    Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100784

    Use-after-free in the Layout: Text and Fonts component

    Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Medium 4.3
    CVE-2026-100783

    Uninitialized memory in the Audio/Video component

    Uninitialized memory in the Audio/Video component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Critical 9.6
    CVE-2026-100781

    Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component

    Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100782

    Privilege escalation due to incorrect boundary conditions in the Graphics component

    Privilege escalation due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100780

    Use-after-free in the DOM: Core & HTML component

    Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100779

    Use-after-free in the XSLT component

    Use-after-free in the XSLT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100777

    Use-after-free in the Graphics: Canvas2D component

    Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Critical 9.6
    CVE-2026-100778

    Sandbox escape due to use-after-free in the DOM: Core & HTML component

    Sandbox escape due to use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100776

    Use-after-free in the JavaScript: WebAssembly component

    Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Critical 9.6
    CVE-2026-100775

    Sandbox escape in the Graphics component

    Sandbox escape in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100774

    Use-after-free in the DOM: Core & HTML component

    Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100772

    Use-after-free in the DOM: Core & HTML component

    Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.8
    CVE-2026-100773

    Use-after-free in the Storage: IndexedDB component

    Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • Critical 9.6
    CVE-2026-100770

    Sandbox escape due to use-after-free in the DOM: Content Processes component

    Sandbox escape due to use-after-free in the DOM: Content Processes component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu
  • High 8.1
    CVE-2026-100771

    Undefined behavior in the DOM: Streams component

    Undefined behavior in the DOM: Streams component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Mozilla Firefox Thunderbird thunderbird Browsers Debian Ubuntu