CVE-2023-28252Windows Common Log File System Driver Elevation of Privilege Vulnerability
- 7.8HighCVSS base score
- 48.9%Exploitation in 30 daysEPSS · top 1.1% of all CVEs
- YesKnown exploitedin CISA's KEV since 11 Apr 2023
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability.
- Added
- 11 Apr 2023
- Fix due (US federal)
- 2 May 2023
- Used by ransomware
- Known
Apply updates per vendor instructions.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 11 Apr 2023.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module for it. CISA's SSVC rates its exploitation: it is being exploited.
Show the exploits1
Metasploit modules1 module
- Windows Common Log File System Driver (clfs.sys) Elevation of Privilege Vulnerability (Metasploit module) (opens in a new tab)
exploit/windows/local/cve_2023_28252_clfs_driverRank gooddisclosed 11 Apr 2023
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By microsoft
- 29 days later
· 29 days later
Published
Added to CISA KEV
Known exploited, also by ransomware
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 48.9% · top 1.1% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
Microsoft · Windows 10 Version 1809
- affected 10.0.17763.0 – < 10.0.17763.4252
Microsoft · Windows 10 Version 1809
- affected 10.0.0 – < 10.0.17763.4252
Microsoft · Windows Server 2019
- affected 10.0.17763.0 – < 10.0.17763.4252
Microsoft · Windows Server 2019 (Server Core installation)
- affected 10.0.17763.0 – < 10.0.17763.4252
Microsoft · Windows Server 2022
- affected 10.0.20348.0 – < 10.0.20348.1668
Microsoft · Windows 10 Version 20H2
- affected 10.0.0 – < 10.0.19042.2846
Microsoft · Windows 11 version 21H2
- affected 10.0.0 – < 10.0.22000.1817
Microsoft · Windows 10 Version 21H2
- affected 10.0.19043.0 – < 10.0.19044.2846
Microsoft · Windows 11 version 22H2
- affected 10.0.22621.0 – < 10.0.22621.1555
Microsoft · Windows 10 Version 22H2
- affected 10.0.19045.0 – < 10.0.19045.2846
Microsoft · Windows 10 Version 1507
- affected 10.0.10240.0 – < 10.0.10240.19869
Microsoft · Windows 10 Version 1607
- affected 10.0.14393.0 – < 10.0.14393.5850
Microsoft · Windows Server 2016
- affected 10.0.14393.0 – < 10.0.14393.5850
Microsoft · Windows Server 2016 (Server Core installation)
- affected 10.0.14393.0 – < 10.0.14393.5850
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.6003.0 – < 6.0.6003.22015
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)
- affected 6.0.6003.0 – < 6.0.6003.22015
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.6003.0 – < 6.0.6003.22015
Microsoft · Windows Server 2008 R2 Service Pack 1
- affected 6.1.7601.0 – < 6.1.7601.26466
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- affected 6.1.7601.0 – < 6.1.7601.26466
Microsoft · Windows Server 2012
- affected 6.2.9200.0 – < 6.2.9200.24216
Microsoft · Windows Server 2012 (Server Core installation)
- affected 6.2.9200.0 – < 6.2.9200.24216
Microsoft · Windows Server 2012 R2
- affected 6.3.9600.0 – < 6.3.9600.20919
Microsoft · Windows Server 2012 R2 (Server Core installation)
- affected 6.3.9600.0 – < 6.3.9600.20919
References
References3
- Windows Common Log File System Driver Elevation of Privilege Vulnerability (opens in a new tab)vendor-advisoryx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28252 (opens in a new tab)government-resource
- http://packetstormsecurity.com/files/174668/Windows-Common-Log-File-System-Driver-clfs.sys-Privilege-Escalation.html (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-31960 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-28252)Record last updated .