Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2025-4919

An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR 115.23.1, Thunderbird 128.10.2, and Thunderbird 138.0.2.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 51.1%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2025-4919


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