Vulnerabilities (CVE)

Filtered by vendor Mozilla Subscribe
Filtered by product Thunderbird
Total 1829 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2026-12296 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 9.6 CRITICAL
Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
CVE-2026-12295 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 9.6 CRITICAL
Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
CVE-2026-12294 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 9.6 CRITICAL
Sandbox escape in the DOM: Workers component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
CVE-2026-12292 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 8.1 HIGH
Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
CVE-2026-12291 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 8.8 HIGH
Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
CVE-2026-12290 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 8.1 HIGH
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
CVE-2026-12289 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 8.8 HIGH
Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
CVE-2026-4729 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox 148 and Thunderbird 148. 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 Firefox 149 and Thunderbird 149.
CVE-2026-4721 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. 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 Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
CVE-2026-4720 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. 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 Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
CVE-2026-4694 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 7.5 HIGH
Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
CVE-2026-4692 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 10.0 CRITICAL
Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
CVE-2026-4689 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 10.0 CRITICAL
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
CVE-2026-4371 1 Mozilla 1 Thunderbird 2026-07-15 N/A 7.4 HIGH
A malicious mail server could send malformed strings with negative lengths, causing the parser to read memory outside the buffer. If a mail server or connection to a mail server were compromised, an attacker could cause the parser to malfunction, potentially crashing Thunderbird or leaking sensitive data. This vulnerability was fixed in Thunderbird 149 and Thunderbird 140.9.
CVE-2026-2807 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox 147 and Thunderbird 147. 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 Firefox 148 and Thunderbird 148.
CVE-2026-2799 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 9.8 CRITICAL
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2798 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 8.8 HIGH
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2797 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 9.8 CRITICAL
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2796 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 9.8 CRITICAL
JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2795 1 Mozilla 2 Firefox, Thunderbird 2026-07-15 N/A 9.8 CRITICAL
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.