CVE-2023-23376: Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
CVE-2023-23376 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2023-02-14
A privilege escalation vulnerability exists in the Microsoft Windows Common Log File System (CLFS) driver due to a heap-based buffer overflow. An attacker who successfully exploits this vulnerability could gain SYSTEM privileges. The vulnerability has been observed being exploited in the wild.
Yes. CVE-2023-23376 is known to be exploited in the wild, first recorded on 14 February 2023. Treat it as urgent.
How severe is CVE-2023-23376?
Critical severity, with a CVSS score of 7.8, published 14 February 2023.
Which products and versions are affected?
Microsoft Windows 10 up to (excluding) 10.0.10240.19747; Microsoft Windows 11 21H2, 22H2; Microsoft Windows Server 2008 SP2, R2 SP1; Microsoft Windows Server 2012 Gold, R2; and 3 more.
Is there a fix for CVE-2023-23376?
A patch was published on 2023-02-14. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2023-23376 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2023-23376?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Microsoft Windows 10 up to (excluding) 10.0.10240.19747
Microsoft Windows 11 21H2, 22H2
Microsoft Windows Server 2008 SP2, R2 SP1
Microsoft Windows Server 2012 Gold, R2
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Microsoft Windows Server 2022
Timeline
2023-02-14: disclosed
2023-02-14: patched
2023-02-14: kev added: Added to CISA Known Exploited Vulnerabilities Catalog