SB2021110921 - Remote code execution in Microsoft Defender

Description

This security bulletin contains information about 1 security vulnerability.

1) Code Injection (CVE-ID: CVE-2021-42298)

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 execute arbitrary code on the target system.

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

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42298
• https://blog.google/threat-analysis-group/new-details-on-commercial-spyware-vendor-variston/