CVE Catalog

CVE-2026-117910

Low risk· EPSS 8%
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.18%

8th percentile - higher than 8% of all known CVEs

Summary

Invalid pointer in the JavaScript Engine component of Firefox and Thunderbird. The vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Risk Assessment

An invalid pointer can lead to a crash or potential code execution when processing malicious JavaScript. This exposes user systems to instability and further exploitation.

Recommendation

Update Firefox and Thunderbird to the fixed versions (Firefox 159, ESR 153.6, Thunderbird 159, 153.6). Check that ESR 115 versions are no longer in use.

Other vulnerabilities in Firefox / Thunderbird

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Original NVD description (English source)

Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS