Windows Common Log File System Driver Elevation of Privilege Vulnerability
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Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-04-11), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.
Windows Common Log File System Driver Elevation of Privilege Vulnerability
April 11, 2023
October 28, 2025
Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28252Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28252MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
Working exploit code is in the public domain (1 Metasploit module) (3 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
it's a CVE-2023-28252 (Patched), but feel free to use it for check any outdated software or reseach
Open source ↗A modification to fortra's CVE-2023-28252 exploit, compiled to exe
Open source ↗Windows Common Log File System Driver (clfs.sys) Elevation of Privilege Vulnerability
Open source ↗See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-28252
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.
msrc
CWE-787 · CWE-122