Unrated severityNVD Advisory· Published Jul 14, 2026· Updated Aug 3, 2026
Microsoft Defender Remote Code Execution Vulnerability
CVE-2026-55011
Description
Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code locally.
Affected products
1Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55011mitrevendor-advisorypatch
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