Remote code execution in Microsoft Windows Update



Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-43491
CWE-ID CWE-416
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
 Windows
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU97008

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-2024-43491

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Microsoft Windows Update services. A remote attacker can send specially crafted traffic to the system, trigger a use-after-free error and execute arbitrary code.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: before 10 1507 10.0.10240.20766, 11 24H2 10.0.26100.1742, 10 1507 10.0.10240.20766

CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-43491


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.



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