Total CVEs

138,502

Critical Severity

3,573

High Severity

12,821

Last 7 Days

2,015
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Showing 261 - 280 of 666 CVEs
CVE-2026-0887 MEDIUM - 4.3

Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Vendor: mozilla
Product: firefox
Published: Jan 13, 2026
Source: NVD
CVE-2026-0886 MEDIUM - 5.3

Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Vendor: mozilla
Product: firefox
Published: Jan 13, 2026
Source: NVD
CVE-2026-0885 MEDIUM - 6.5

Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Vendor: mozilla
Product: firefox
Published: Jan 13, 2026
Source: NVD
CVE-2026-0884 CRITICAL - 9.8

Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Vendor: mozilla
Product: firefox
Published: Jan 13, 2026
Source: NVD
CVE-2026-0883 MEDIUM - 5.3

Information disclosure in the Networking component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Vendor: mozilla
Product: firefox
Published: Jan 13, 2026
Source: NVD
CVE-2026-0882 HIGH - 8.8

Use-after-free in the IPC component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Vendor: mozilla
Product: firefox
Published: Jan 13, 2026
Source: NVD
CVE-2026-0881 CRITICAL - 10.0

Sandbox escape in the Messaging System component. This vulnerability affects Firefox < 147 and Thunderbird < 147.

Vendor: mozilla
Product: firefox
Published: Jan 13, 2026
Source: NVD
CVE-2026-0880 HIGH - 8.8

Sandbox escape due to integer overflow in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Vendor: mozilla
Product: firefox
Published: Jan 13, 2026
Source: NVD
CVE-2026-0879 CRITICAL - 9.8

Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Vendor: mozilla
Product: firefox
Published: Jan 13, 2026
Source: NVD
CVE-2026-0878 HIGH - 8.0

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Vendor: mozilla
Product: firefox
Published: Jan 13, 2026
Source: NVD
CVE-2026-0877 HIGH - 8.1

Mitigation bypass in the DOM: Security component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Vendor: mozilla
Product: firefox
Published: Jan 13, 2026
Source: NVD

Memory safety bugs present in Firefox 146. 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 < 146.0.1.

Published: Dec 18, 2025
Source: NVD

Use-after-free in the Disability Access APIs component. This vulnerability affects Firefox < 146.0.1.

Published: Dec 18, 2025
Source: NVD

Unicode RTLO characters could allow malicious websites to spoof filenames in the downloads UI for Firefox for iOS, potentially tricking users into saving files of an unexpected file type. This vulnerability affects Firefox for iOS < 144.0.

Published: Dec 18, 2025
Source: NVD

Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. 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 &l...

Published: Dec 09, 2025
Source: NVD

Memory safety bugs present in Firefox 145 and Thunderbird 145. 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 < 146 and Thunderbird < 146.

Published: Dec 09, 2025
Source: NVD

Same-origin policy bypass in the Request Handling component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.

Published: Dec 09, 2025
Source: NVD

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.

Published: Dec 09, 2025
Source: NVD

Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.

Published: Dec 09, 2025
Source: NVD

Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.

Published: Dec 09, 2025
Source: NVD