Mozilla: >> Firefox >> 82.0.3 Security Vulnerabilities
Privilege escalation in the IPC component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
CVSS Score
8.8
EPSS Score
0.0
Published
2026-03-24
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
CVSS Score
9.8
EPSS Score
0.0
Published
2026-03-24
Undefined behavior in the Audio/Video component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
CVSS Score
9.1
EPSS Score
0.0
Published
2026-03-24
Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
CVSS Score
10.0
EPSS Score
0.0
Published
2026-03-24
Denial-of-service in the XML component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
CVSS Score
7.5
EPSS Score
0.0
Published
2026-03-24
Denial-of-service in the Libraries component in NSS. This vulnerability affects Firefox < 149 and Thunderbird < 149.
CVSS Score
7.5
EPSS Score
0.0
Published
2026-03-24
Spoofing issue in the Privacy: Anti-Tracking component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
CVSS Score
6.5
EPSS Score
0.0
Published
2026-03-24
Memory safety bugs present in Firefox 148 and Thunderbird 148. 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 < 149 and Thunderbird < 149.
CVSS Score
9.8
EPSS Score
0.0
Published
2026-03-24
Use-after-free in the Widget: Cocoa 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
Information disclosure in the Widget: Cocoa 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
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