What’s Vulnerable › Vulnerabilities

CVE-2023-36422: Microsoft Windows Defender Elevation of Privilege Vulnerability

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-14 · updated 2026-06-17
• Weakness: CWE-426

Description

Microsoft Windows Defender Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows Defender: before 4.18.23100.2009 — fixed in 4.18.23100.2009
• Microsoft Windows Defender: from 4.0.0.0 before 4.18.23100.2009 — fixed in 4.18.23100.2009

How to fix

Upgrade to a fixed version: Microsoft Windows Defender 4.18.23100.2009; Microsoft Windows Defender 4.18.23100.2009. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36422
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36422

Get alerted when CVE-2023-36422 or the next vulnerability affects your stack