Microsoft Windows Out-of-Bounds Read Vulnerability
Windows Common Log File System Driver Elevation of Privilege Vulnerability
What happened
Windows Common Log File System Driver Elevation of Privilege Vulnerability
CISA lists it as exploited, added 13 Apr 2026.
Does it affect you
Names Microsoft Windows Server. Enter the product and version you run to place it against the affected range the vendor published.
What to do
- Apply the vendor patch named in this advisory.
msrc.microsoft.com - Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
cisa.gov
CISA’s notes for this entry:
Affected, as published to NVD
- ms-winserver
- Microsoft Windows Server: everything below 10.0.14393.6452
The record
- NVD status
- Analyzed
- Published
- 14 Nov 2023, last modified 17 Jun 2026 (NVD)
- Severity
- CVSS 3.1 base score 7.8, High — computed here from the vector; NVD states 7.8.
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness
- CWE-125 Out-of-bounds Read (NVD; names by MITRE)
- Exploitation
- Listed in CISA’s Known Exploited Vulnerabilities catalogue since 13 Apr 2026; federal remediation due 27 Apr 2026. CISA entry
- Exploit probability
- EPSS 12.1%, 96th percentile — FIRST, scored 23 Oct 2026. FIRST EPSS
- Vendor
- Microsoft · Windows (CISA)
References on the NVD record
- msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36424PatchVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36424US Government Resource
Sources
The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.