7.8

CVE-2022-37969: Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability

CVSS: 7.8v3.1HighKEVRansomwareAnalyzed
Published 13-09-2022Last modified 10-09-2026
Open JSON

Vulnerability summary

CVE-2022-37969 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in Microsoft Windows. It is known to be exploited: CISA lists it, first on 14-09-2022. It has been used in ransomware campaigns. EPSS estimates a 28.27% chance of exploitation in the next 30 days, higher than 98.1% of scored vulnerabilities.

Overall risk
90/100
0100
Critical · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
28.27%
0%100%
High · 0.00 pp in 30 days
KEVListedCISA
RansomwareKnown useFlagged by CISA
Public exploits0No public exploits recorded

Timeline

  1. 13-09-2022
    PublishedVulnerability first disclosed.
  2. 14-09-2022
    Added to CISA KEVMicrosoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
  3. 05-10-2022
    CISA remediation dueApply updates per vendor instructions.
  4. 10-09-2026
    Last modifiedVulnerability information updated.

Description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

28.27%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 28.27% on 20-09-2026

20-09-202620-10-2026
EPSS score
28.27%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
14-09-2022
Federal due date
05-10-2022
Ransomware

CISA required action

Apply updates per vendor instructions. msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-37969 nvd.nist.gov/vuln/detail/CVE-2022-37969

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft33 products

1 vendor · 33 products

References

2 links