CVE Catalog

CVE-2026-92050

CriticalCVSS 9.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.41%

33th percentile - higher than 33% of all known CVEs

Summary

Sandbox escape due to a race condition in the XPConnect component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

Risk Assessment

Exploitation of this flaw could allow escaping the browser sandbox and executing code outside of it, posing a serious risk to user workstations.

Recommendation

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

Related vulnerabilities

Original NVD description (English source)

Sandbox escape due to race condition in the XPConnect component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

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