What’s Vulnerable › Vulnerabilities

CVE-2023-24934: Microsoft Defender Security Feature Bypass Vulnerability

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-04-14 · updated 2026-06-17
• Weakness: CWE-306

Description

Microsoft Defender Security Feature Bypass Vulnerability

Affected products

• Microsoft Malware Protection Platform: before 4.18.2303.8 — fixed in 4.18.2303.8
• Microsoft Malware Protection Platform: from 4.0.0.0 before 4.18.2303.8 — fixed in 4.18.2303.8

How to fix

Upgrade to a fixed version: Microsoft Malware Protection Platform 4.18.2303.8; Microsoft Malware Protection Platform 4.18.2303.8. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24934
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24934

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