CVE Catalog

CVE-2026-92032

Low risk· EPSS 5%
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.16%

5th percentile - higher than 5% of all known CVEs

Summary

Sandbox escape vulnerability caused by an invalid pointer in the Graphics component of Firefox and Thunderbird. The flaw was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

Risk Assessment

A sandbox escape may allow an attacker to execute code outside the isolated environment, significantly increasing the risk of full system compromise. This is a high-potential vulnerability for targeted attacks.

Recommendation

Immediately update Firefox to version 156 or ESR 140.16/153.3, and Thunderbird to version 156 or 140.16/153.3. Given the nature of the flaw, treat this update as a priority.

Related vulnerabilities

Original NVD description (English source)

Sandbox escape due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

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