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Microsoft Warns of Two Actively Exploited Defender Vulnerabilities

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Microsoft just dropped a warning about two actively exploited vulnerabilities in Defender, including a privilege escalation flaw (CVE-2026-41091) that could give attackers SYSTEM privileges. This isn't one to sleep on, as these flaws are already being leveraged in the wild. If you're running Defender, patch up ASAP to block potential system compromise.

CVE-2026-41091MicrosoftMicrosoft Defender

Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild. The former, tracked as CVE-2026-41091, is rated 7.8 on the CVSS scoring system. Successful exploitation of the flaw could allow an attacker to gain SYSTEM privileges. "Improper link resolution before file access ('link following') in Microsoft Defender

This summary was generated from open reporting. Read the full original article ↗

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