CVE-2022-24521

high

Description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

From the Tenable Blog

Microsoft’s April 2022 Patch Tuesday Addresses 117 CVEs (CVE-2022-24521)
Microsoft’s April 2022 Patch Tuesday Addresses 117 CVEs (CVE-2022-24521)

Published: 2022-04-12

Microsoft’s April 2022 Patch Tuesday Addresses 117 CVEs (CVE-2022-24521) Microsoft addresses 117 CVEs in its April 2022 Patch Tuesday release, including two zero-day vulnerabilities, one of which was exploited in the wild and reported to Microsoft by the National Security Agency.

References

https://www.security.com/threat-intelligence/ransomhub-betruger-backdoor

https://www.helpnetsecurity.com/2025/03/20/ransomhub-affiliate-leverages-multi-function-betruger-backdoor/

https://www.securityweek.com/anatomy-of-a-blackcat-attack-through-the-eyes-of-incident-response/

https://www.sygnia.co/blog/blackcat-ransomware/

https://securelist.com/windows-clfs-exploits-ransomware/111560/

https://securelist.com/windows-clfs-exploits-ransomware-cve-2022-24521/111580/

https://www.tenable.com/cyber-exposure/tenable-2022-threat-landscape-report

https://www.tenable.com/blog/microsofts-february-2023-patch-tuesday-addresses-75-cves-cve-2023-23376

https://www.tenable.com/blog/microsofts-september-2022-patch-tuesday-addresses-62-cves-cve-2022-37969

https://www.covertswarm.com/post/multiple-windows-zero-days-cve-2022-24521-cve-2022-26904-and-cve-2022-26809

https://www.tenable.com/blog/microsofts-april-2022-patch-tuesday-addresses-117-cves-cve-2022-24521

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-24521

Details

Source: Mitre, NVD

Published: 2022-04-15

Updated: 2025-02-24

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High