Vulnerability identifier: #VU67237

Vulnerability risk: Critical

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2022-34721

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when handling IKEv1 packets. A remote attacker can send specially crafted IKEv1 packets to the affected system and execute arbitrary code.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 11 - 11 21H2, 10 - 10 S, 8.1 - 8.1 RT, 7 - 7 SP1

Windows Server: 2008 - 2022 20H2

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External links
http://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-34721

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.