CVE-2023-25739
HighCVSS 8.8Exploitation Probability (EPSS)
Elevated risk52th percentile - higher than 52% of all known CVEs
Summary
Failed module load requests were not checked for cancellation, causing a use-after-free in ScriptLoadContext in Firefox and Thunderbird. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
Risk Assessment
May lead to crashes or potential code execution when loading malicious modules. Exposes users to remote attacks.
Recommendation
Update Firefox to version 110 or later, Thunderbird to 102.8 or later, and Firefox ESR to 102.8 or later.
Other vulnerabilities in Firefox
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Original NVD description (English source)
Module load requests that failed were not being checked as to whether or not they were cancelled causing a use-after-free in <code>ScriptLoadContext</code>. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS