CVE Catalog

CVE-2026-92038

Low risk· EPSS 6%
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.16%

6th percentile - higher than 6% of all known CVEs

Summary

Mitigation bypass vulnerability in the Remote Settings Client component of Firefox and Thunderbird. The flaw was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

Risk Assessment

Bypassing security controls in the remote settings client may allow manipulation of server-fetched configuration, potentially altering browser behavior or weakening other protections. The risk affects centrally managed environments.

Recommendation

Update Firefox to version 156 or ESR 153.3, and Thunderbird to version 156 or 153.3. Verify the integrity of remote settings configuration in managed environments.

Related vulnerabilities

Original NVD description (English source)

Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

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