#VU87472 Security features bypass in Windows Defender antimalware platform - CVE-2024-20671

Vulnerability identifier: #VU87472

Vulnerability risk: Low

CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2024-20671

CWE-ID: CWE-254

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
Windows Defender antimalware platform
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: Microsoft

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to security features bypass in the Microsoft Defender. A local user can prevent Microsoft Defender from starting.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows Defender antimalware platform: All versions

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External links
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20671

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.