Thunderbird

Source repositories

https://github.com/mozilla/releases-comm-central

CVEs (1,863)

CVE	Vendor / Product	Sev	Risk	CVSS	EPSS	Published	Description
CVE-2026-2786	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2785	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2784	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2782	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2781	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2780	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2779	Mozilla Corporation Firefox	Cri	0.64	9.8	0.01	Feb 24, 2026	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.
CVE-2026-2777	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2775	Mozilla Corporation Firefox	Cri	0.64	9.8	0.01	Feb 24, 2026	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.
CVE-2026-2774	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2773	Mozilla Corporation Firefox	Cri	0.64	9.8	0.01	Feb 24, 2026	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.
CVE-2026-2772	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2771	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2770	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2767	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2766	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2765	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2764	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2763	Mozilla Corporation Firefox	Cri	0.64	9.8	0.00	Feb 24, 2026	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.
CVE-2026-2762	Mozilla Corporation Firefox	Cri	0.64	9.8	0.01	Feb 24, 2026	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.

CVE-2026-2786CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2785CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2784CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2782CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2781CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2780CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2779CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.01
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.
CVE-2026-2777CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2775CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.01
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.
CVE-2026-2774CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2773CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.01
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.
CVE-2026-2772CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2771CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2770CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2767CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2766CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2765CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2764CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2763CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.00
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.
CVE-2026-2762CriFeb 24, 2026
Mozilla Corporation
Firefox
risk 0.64cvss 9.8epss 0.01
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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