CVE-2025-10532
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk23th percentile - higher than 23% of all known CVEs
Summary
Incorrect boundary conditions exist in the JavaScript: GC component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
Risk Assessment
This may lead to browser crashes or potentially arbitrary code execution when processing malicious JavaScript content.
Recommendation
Update Firefox and Thunderbird to the fixed versions (Firefox 143, Firefox ESR 140.3, Thunderbird 143, Thunderbird 140.3 or later).
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Original NVD description (English source)
Incorrect boundary conditions in the JavaScript: GC component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS