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Vulnerabilities
Vulnerable Software
Mozilla:  >> Firefox  >> 84.0  Security Vulnerabilities
CVE-2026-4701
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVSS Score
9.8
EPSS Score
0.0
Published
2026-03-24
CVE-2026-4702
JIT miscompilation in the JavaScript Engine component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVSS Score
9.8
EPSS Score
0.0
Published
2026-03-24
CVE-2026-4704
Denial-of-service in the WebRTC: Signaling component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVSS Score
7.5
EPSS Score
0.0
Published
2026-03-24
CVE-2026-4705
Undefined behavior in the WebRTC: Signaling component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVSS Score
9.8
EPSS Score
0.0
Published
2026-03-24
CVE-2026-4706
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.
CVSS Score
7.5
EPSS Score
0.0
Published
2026-03-24
CVE-2026-4707
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.
CVSS Score
7.5
EPSS Score
0.0
Published
2026-03-24
CVE-2026-4708
Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVSS Score
7.5
EPSS Score
0.0
Published
2026-03-24
CVE-2026-4709
Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVSS Score
7.5
EPSS Score
0.0
Published
2026-03-24
CVE-2026-4710
Incorrect boundary conditions in the Audio/Video component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
CVSS Score
9.8
EPSS Score
0.0
Published
2026-03-24
CVE-2026-4692
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.
CVSS Score
10.0
EPSS Score
0.0
Published
2026-03-24


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