Home/CVE/Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
CVE

CVE-2023-23376

Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability

Windows Common Log File System Driver Elevation of Privilege Vulnerability.

HIGH · CVSS 7.8 ⚠ CISA KEV EPSS 0.15152 Ransomware: known
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  • Listed on CISA KEV (known exploited in the wild)
  • Linked to known ransomware campaigns
  • SSVC exploitation status: active
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 5% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬢

Required Remediation

Apply updates per vendor instructions.

⬡

Weakness Classification

CWE-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

13
microsoft windows 10 1507< 10.0.10240.19747
microsoft windows 10 1607< 10.0.14393.5717
microsoft windows 10 1809< 10.0.17763.4010
microsoft windows 10 20h2< 10.0.19042.2604
microsoft windows 10 21h2< 10.0.19044.2604
microsoft windows 10 22h2< 10.0.19045.2604
microsoft windows 11 21h2< 10.0.22000.1574
microsoft windows 11 22h2< 10.0.22621.1265
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Feb 2023 · 08:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
msrcCVE-2023-23376Elevation of Privilege
cisaKEV-CVE-2023-23376
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23376US Government Resource
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