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- Critical9.8Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1.Check if you run itEPSS 0.61%Apr 7, 2026
- High7.4A malicious mail server could send malformed strings with negative lengths, causing the parser to read memory outside the buffer.Check if you run itEPSS 0.64%Mar 24, 2026
- Medium6.5Spoofing issue in Thunderbird.Check if you run itEPSS 0.35%Mar 24, 2026
- Critical9.8Memory safety bugs present in Firefox 148 and Thunderbird 148.Check if you run itEPSS 0.46%Mar 24, 2026
- Medium6.5Spoofing issue in the Privacy: Anti-Tracking component.Check if you run itEPSS 0.34%Mar 24, 2026
- High7.5Denial-of-service in the Libraries component in NSS.Check if you run itEPSS 0.52%Mar 24, 2026
- High7.5Denial-of-service in the XML component.Check if you run itEPSS 0.52%Mar 24, 2026
- Critical10.0Sandbox escape due to use-after-free in the Graphics: Canvas2D component.Check if you run itEPSS 0.43%Mar 24, 2026
- Critical9.1Undefined behavior in the Audio/Video component.Check if you run itEPSS 0.43%Mar 24, 2026
- Critical9.8Use-after-free in the JavaScript Engine component.Check if you run itEPSS 0.54%Mar 24, 2026
- High8.8Privilege escalation in the IPC component.Check if you run itEPSS 0.43%Mar 24, 2026
- Critical9.8Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148.Check if you run itEPSS 0.42%Mar 24, 2026
- Critical9.8Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148.Check if you run itEPSS 0.42%Mar 24, 2026
- High7.5Incorrect boundary conditions in the Graphics: Text component.Check if you run itEPSS 0.43%Mar 24, 2026
- High8.1Undefined behavior in the WebRTC: Signaling component.Check if you run itEPSS 0.46%Mar 24, 2026
- Critical9.8Privilege escalation in the Netmonitor component.Check if you run itEPSS 0.42%Mar 24, 2026
- Critical9.1Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component.Check if you run itEPSS 0.41%Mar 24, 2026
- Critical9.1Uninitialized memory in the Graphics: Canvas2D component.Check if you run itEPSS 0.43%Mar 24, 2026
- High7.5Incorrect boundary conditions in the Audio/Video component.Check if you run itEPSS 0.43%Mar 24, 2026
- High7.5Incorrect boundary conditions in the Graphics component.Check if you run itEPSS 0.43%Mar 24, 2026
- High7.5Information disclosure in the Widget: Cocoa component.Check if you run itEPSS 0.39%Mar 24, 2026
- Critical9.8Use-after-free in the Widget: Cocoa component.Check if you run itEPSS 0.40%Mar 24, 2026
- Critical9.8Incorrect boundary conditions in the Audio/Video component.Check if you run itEPSS 0.41%Mar 24, 2026
- High7.5Incorrect boundary conditions in the Audio/Video: GMP component.Check if you run itEPSS 0.46%Mar 24, 2026
- High7.5Incorrect boundary conditions in the Graphics component.Check if you run itEPSS 0.43%Mar 24, 2026