CVE Catalog

CVE-2026-92040

HighCVSS 8.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.45%

37th percentile - higher than 37% of all known CVEs

Summary

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

Risk Assessment

Exploitation could lead to arbitrary code execution or application crashes, threatening the security of the user's workstation.

Recommendation

Update Firefox to version 156 or later and Thunderbird to version 156 or later.

Related vulnerabilities

Original NVD description (English source)

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

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