Vulnerabilities (CVE)

Filtered by vendor Mozilla Subscribe
Filtered by product Thunderbird
Total 1635 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2026-2772 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Use-after-free in the Audio/Video: Playback component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2770 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2768 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 10.0 CRITICAL
Sandbox escape in the Storage: IndexedDB component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2803 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 7.5 HIGH
Information disclosure, mitigation bypass in the Settings UI component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
CVE-2026-2801 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 7.5 HIGH
Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
CVE-2026-2800 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Spoofing issue in the WebAuthn component in Firefox for Android. This vulnerability affects Firefox < 148 and Thunderbird < 148.
CVE-2026-2790 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Same-origin policy bypass in the Networking: JAR component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2787 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Use-after-free in the DOM: Window and Location component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2786 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2785 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Invalid pointer in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2783 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 7.5 HIGH
Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2781 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Integer overflow in the Libraries component in NSS. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2774 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Integer overflow in the Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2767 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Use-after-free in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2025-3909 1 Mozilla 1 Thunderbird 2026-02-26 N/A 8.1 HIGH
Thunderbird's handling of the X-Mozilla-External-Attachment-URL header can be exploited to execute JavaScript in the file:/// context. By crafting a nested email attachment (message/rfc822) and setting its content type to application/pdf, Thunderbird may incorrectly render it as HTML when opened, allowing the embedded JavaScript to run without requiring a file download. This behavior relies on Thunderbird auto-saving the attachment to /tmp and linking to it via the file:/// protocol, potentially enabling JavaScript execution as part of the HTML. This vulnerability affects Thunderbird < 128.10.1 and Thunderbird < 138.0.1.
CVE-2026-2761 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 10.0 CRITICAL
Sandbox escape in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2760 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 10.0 CRITICAL
Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2759 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2758 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
CVE-2026-2757 1 Mozilla 2 Firefox, Thunderbird 2026-02-26 N/A 9.8 CRITICAL
Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.