CVE-2026-55011 Microsoft Defender Remote Code Execution Vulnerability
Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code locally.
Read at Microsoft Security Response Center
- Vendor
- Microsoft
- Product
- Microsoft Defender
- Exposure class
- Endpoint security
Why it ranks 19 (Routine)
- Product class: endpoint security
- Widely deployed vendor product (Microsoft)
- Vendor security advisory
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- Microsoft Security Response Center (msrc.microsoft.com)
- CVE-2026-55011 on this site · NVD · CVE.org · Vulnpedia
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