CVE-2026-92073 is a privilege escalation vulnerability affecting the Enterprise Policies component in Firefox. The flaw allows an attacker to escalate privileges, potentially leading to full compromise of the affected system. Mozilla addressed this vulnerability by releasing a fix in Firefox 156 and Firefox ESR 153.3. The CVSS v3.1 base score is 8.8, indicating a high impact with network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, and high confidentiality, integrity, and availability impacts.

Successful exploitation of this vulnerability could allow an attacker to escalate privileges within the Firefox environment, potentially gaining higher access rights than intended. This could lead to unauthorized actions or control over the affected system. The high CVSS score reflects the significant impact on confidentiality, integrity, and availability.

This vulnerability has been fixed by Mozilla in Firefox 156 and Firefox ESR 153.3. Users and administrators should update affected Firefox installations to these versions or later to remediate the issue. No additional mitigation actions are required beyond applying the official update.