Search Results (3510 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2026-3889 1 Mozilla 1 Thunderbird 2026-03-25 5.4 Medium
Spoofing issue in Thunderbird. This vulnerability affects Thunderbird < 149 and Thunderbird < 140.9.
CVE-2026-4371 1 Mozilla 1 Thunderbird 2026-03-25 N/A
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 affects Thunderbird < 149 and Thunderbird < 140.9.
CVE-2026-4689 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-03-25 10 Critical
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4692 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-03-25 9.6 Critical
Sandbox escape in the Responsive Design Mode component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4690 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 9.6 Critical
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4688 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 9.6 Critical
Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4687 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 8.8 High
Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4694 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-03-25 7.5 High
Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4729 1 Mozilla 1 Firefox 2026-03-25 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 affects Firefox < 149 and Thunderbird < 149.
CVE-2026-4725 1 Mozilla 1 Firefox 2026-03-25 9.3 Critical
Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
CVE-2026-4721 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 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 affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4720 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 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 affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4717 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 9.8 Critical
Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4684 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 7.5 High
Race condition, use-after-free in the Graphics: WebRender component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4685 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 7.5 High
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4686 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 7.5 High
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4691 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 9.8 Critical
Use-after-free in the CSS Parsing and Computation component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4693 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 7.5 High
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4695 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 7.5 High
Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVE-2026-4696 1 Mozilla 2 Firefox, Firefox Esr 2026-03-25 9.8 Critical
Use-after-free in the Layout: Text and Fonts component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.