Vulnerabilities (CVE)

Filtered by vendor Mozilla Subscribe
Filtered by product Firefox
Total 3337 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2026-84130 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 7.5 HIGH
Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84132 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 7.5 HIGH
Information disclosure in the Networking: HTTP component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84133 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 9.8 CRITICAL
Site isolation issue in the DOM: Push Subscriptions component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84134 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 9.8 CRITICAL
Other issue in the Profile Backup component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84143 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 9.8 CRITICAL
Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
CVE-2026-84142 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 9.8 CRITICAL
Internally found bugs present in Thunderbird 154. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155 and Thunderbird 155.
CVE-2026-84141 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 9.8 CRITICAL
Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84140 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 9.8 CRITICAL
Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84139 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 6.1 MEDIUM
Clickjacking issue in the DOM: Events component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84138 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 6.5 MEDIUM
Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 155 and Thunderbird 155.
CVE-2026-84137 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 4.3 MEDIUM
Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84136 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 6.1 MEDIUM
Other issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84144 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 7.5 HIGH
Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84126 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 4.3 MEDIUM
Incorrect boundary conditions in the Layout: Grid component. This vulnerability was fixed in Firefox 155 and Thunderbird 155.
CVE-2026-84128 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 8.8 HIGH
Privilege escalation in the WebDriver BiDi component. This vulnerability was fixed in Firefox 155 and Thunderbird 155.
CVE-2026-84129 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 9.8 CRITICAL
Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84131 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 8.8 HIGH
Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
CVE-2026-84145 1 Mozilla 2 Firefox, Thunderbird 2026-09-03 N/A 7.5 HIGH
Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
CVE-2026-84118 1 Mozilla 2 Firefox, Thunderbird 2026-09-02 N/A 5.4 MEDIUM
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVE-2026-84119 1 Mozilla 2 Firefox, Thunderbird 2026-09-02 N/A 9.6 CRITICAL
Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.