Vendor
Mozilla
2,559 known vulnerabilities.
Products
2,559 results · Feed
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High 8.8
Privilege escalation in the Netmonitor component
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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High 8.8
Integer overflow in the Libraries component in NSS
Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35.
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High 8.8
Privilege escalation in the Netmonitor component
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8
Incorrect boundary conditions in the Networking: JAR component
Incorrect boundary conditions in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 10.0
Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component
Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8
Privilege escalation in the Messaging System component
Privilege escalation in the Messaging System component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 10.0
Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software
Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8
Mitigation bypass in the DOM: HTML Parser component
Mitigation bypass in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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High 8.8
Integer overflow in the Audio/Video component
Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8
Incorrect boundary conditions in the Web Audio component
Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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High 8.8
Use-after-free in the Audio/Video: Playback component
Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8
Undefined behavior in the DOM: Core & HTML component
Undefined behavior in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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High 8.8
Use-after-free in the DOM: Bindings (WebIDL) component
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 10.0
Sandbox escape in the Storage: IndexedDB component
Sandbox escape in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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High 8.8
Use-after-free in the Storage: IndexedDB component
Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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High 8.8
Use-after-free in the JavaScript: WebAssembly component
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8CVE-2026-2766 Public exploit
Use-after-free in the JavaScript Engine: JIT component
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8CVE-2026-2764 Public exploit
JIT miscompilation, use-after-free in the JavaScript Engine: JIT component
JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8
Use-after-free in the JavaScript Engine component
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8CVE-2026-2763 Public exploit
Use-after-free in the JavaScript Engine component
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 10.0
Sandbox escape in the Graphics: WebRender component
Sandbox escape in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8
Integer overflow in the JavaScript: Standard Library component
Integer overflow in the JavaScript: Standard Library component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 10.0
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 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8
Incorrect boundary conditions in the Graphics: ImageLib component
Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8
Use-after-free in the JavaScript: GC component
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, and Thunderbird 140.8.
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Critical 9.8
Incorrect boundary conditions in the WebRTC: Audio/Video component
Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Medium 4.3
Interrupted page loads in new tabs could allow website spoofing under trusted domains in Firefox iOS
Malicious scripts that interrupt new tab page loading could cause desynchronization between the address bar and page content, allowing the attacker to spoof arbitrary HTML under a trusted domain. This vulnerability was fixed in Firefox for iOS 147.2.1.
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High 8.8
Heap buffer overflow in libvpx
Heap buffer overflow in libvpx. This vulnerability was fixed in Firefox 147.0.4, Firefox ESR 140.7.1, Firefox ESR 115.32.1, Thunderbird 140.7.2, and Thunderbird 147.0.2.
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Medium 4.3
CSS-based exfiltration of the content from partially encrypted emails when allowing remote content
When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles f…
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High 8.8
Use-after-free in the Layout: Scrolling and Overflow component
Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability was fixed in Firefox 147.0.2.
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Medium 6.5
Mitigation bypass in the Privacy: Anti-Tracking component
Mitigation bypass in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 147.0.2.
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High 8.1
Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147
Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary co…
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Critical 9.8
Memory safety bugs fixed in Firefox 147 and Thunderbird 147
Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefo…
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Medium 5.4
Spoofing issue in the DOM: Copy & Paste and Drag & Drop component
Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
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Medium 5.3
Information disclosure in the XML component
Information disclosure in the XML component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
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High 7.5
Denial-of-service in the DOM: Service Workers component
Denial-of-service in the DOM: Service Workers component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
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Medium 5.3
Incorrect boundary conditions in the Graphics component
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
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Medium 4.3
Clickjacking issue, information disclosure in the PDF Viewer component
Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
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Medium 6.5
Use-after-free in the JavaScript: GC component
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
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Critical 9.8
Use-after-free in the JavaScript Engine component
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.