CVE-2021-34464

Microsoft Defender Remote Code Execution Vulnerability

State: Published
Severity: 7.8 High
Published: Jul 16, 2021
Updated: Aug 10, 2026
Reserved: Jun 9, 2021

Description

Microsoft Defender Remote Code Execution Vulnerability

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
Microsoft Malware Protection EngineMicrosoft	1.1.0.0 to before 1.1.18242.0Affected

References

Microsoft Defender Remote Code Execution Vulnerabilityvendor-advisorypatch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34464

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.