CVE-2023-21809

FAQ

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?

A user needs to be tricked into running malicious files.

What kind of security feature could be bypassed by successfully exploiting this vulnerability?

An attacker who successfully exploited this vulnerability could bypass the Windows Defender Attack Surface Reduction blocking feature.

How can I check if I'm protected from this vulnerability?

This vulnerability existed in the Defender Security Intelligence Updates and not the Malware protection engine. The version of the signatures that addressed the vulnerability is 1.379.200.0 and was updated automatically. Check the current version in Windows Update history Definition Updates to see the most recently installed definitions.