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2026-04-14
Microsoft Defender Local Privilege Escalation Vulnerability (CVE-2026-33825) Security Advisory
[Affected Scope] Windows systems with Microsoft Defender enabled and lacking the latest security updates.
[Impact] An authorized local attacker can exploit insufficient access control granularity to elevate privileges to SYSTEM, potentially disabling security controls.
[Mitigation] Immediately update the Microsoft Defender engine and definition files to the latest version, especially as this vulnerability is actively exploited in the wild.