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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-55011

Microsoft Defender Remote Code Execution Vulnerability

Description

Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code locally.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Microsoft Microsoft Malware Protection Engine

  • 1.1.0.0 to < 1.1.26060.3008affected

References