#VU54810 Code Injection in Microsoft Malware Protection Engine - CVE-2021-34522 

 

#VU54810 Code Injection in Microsoft Malware Protection Engine - CVE-2021-34522

Published: July 13, 2021


Vulnerability identifier: #VU54810
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-34522
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Microsoft Malware Protection Engine
Software vendor:
Microsoft

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in Microsoft Defender. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install updates from vendor's website.

External links