What’s Vulnerable › Vulnerabilities
CVE-2026-55012: Microsoft Defender Remote Code Execution Vulnerability
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-14 · updated 2026-10-28
- Weakness: CWE-190
Description
Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally.
Affected products
- Microsoft Malware Protection Engine: before 1.1.26060.3008 — fixed in 1.1.26060.3008
- Microsoft Malware Protection Engine: from 1.1.0.0 before 1.1.26060.3008 — fixed in 1.1.26060.3008
How to fix
Upgrade to a fixed version: Microsoft Malware Protection Engine 1.1.26060.3008; Microsoft Malware Protection Engine 1.1.26060.3008. Check the vendor advisory for mitigations.
References
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