Firefox Vulnerabilities

Security vulnerability tracking for Mozilla Firefox

Last updated: Feb 16, 2026
Total CVEs

1

Critical

28

With Exploits

32

Last 30 Days

0

Vulnerability Timeline

1 vulnerabilities discovered over time for Firefox

Severity Distribution

Critical28
2800%
High3
300%
Medium1
100%
Low0
0%
DescriptionVendor / ProductExploit Status
CVE-2026-20324.3

An attacker can trick users into seeing fake content that looks legitimate by interrupting the loading of new tabs in Firefox for iOS versions before 147.2.1. This requires the attacker to run malicious scripts during the loading process, which can mislead users into believing they are on a trusted website.

mozillafirefox
Exploit Available
about 2 months agoFeb 16, 2026

About Mozilla Firefox Security

This page provides comprehensive security vulnerability tracking for Mozilla Firefox. Our database includes all CVEs affecting this product, updated in real-time from official sources.

Each vulnerability listing includes detailed CVSS severity analysis, exploit availability status, AI-generated explanations, and direct links to official security patches and vendor advisories.

Security Recommendations

  • • Always keep Firefox updated to the latest version
  • • Subscribe to security advisories from Mozilla
  • • Monitor this page for new vulnerabilities affecting your version
  • • Prioritize patching critical and high severity issues immediately