CVE-2025-3031
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk20th percentile - higher than 20% of all known CVEs
Summary
An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function. This vulnerability was fixed in Firefox 137 and Thunderbird 137.
Risk Assessment
An attacker could access fragments of data from the stack, potentially leading to disclosure of sensitive information or bypassing security measures.
Recommendation
Update Firefox or Thunderbird to version 137 or later, which includes the fix.
Other vulnerabilities in Firefox
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Vulnerability allows sandbox escape due to incorrect boundary conditions in the Internationalization component. It was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.
Original NVD description (English source)
An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function. This vulnerability was fixed in Firefox 137 and Thunderbird 137.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS