PatchTheCVECVE-2022-37969: Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
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CVE-2022-37969 is a high-severity flaw (CVSS 7.8) affecting windows 10 1507, windows 10 1607, windows 10 1809, reported as exploited in the wild. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Why this priority
- High severity
- EPSS top 2%: very likely to be exploited
- Exploited in the wild (CISA KEV)
- Used in ransomware campaigns
- Public exploit reference
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 28.5% (top 2%) |
| CISA exploited list | Yes, fix due 2022-10-05, used in ransomware |
| Weakness | CWE-787 |
| Published | 2022-09-13 |
| Last modified | 2026-09-10 |
Publisher (CNA): Microsoft Corporation · Vendor: microsoft
Last updated 2026-09-10 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Exploited Added to the CISA Known Exploited Vulnerabilities list
- Deadline CISA due date for US federal agencies to patch
- Updated Record last modified
microsoft windows 10 1507 UPGRADE
Affected: < 10.0.10240.19444
Fixed in: 10.0.10240.19444
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
microsoft windows 10 1607 UPGRADE
Affected: < 10.0.14393.5356
Fixed in: 10.0.14393.5356
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
microsoft windows 10 1809 UPGRADE
Affected: < 10.0.17763.3406
Fixed in: 10.0.17763.3406
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
microsoft windows 10 20h2 UPGRADE
Affected: < 10.0.19042.2006
Fixed in: 10.0.19042.2006
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
microsoft windows 10 21h1 UPGRADE
Affected: < 10.0.19043.2006
Fixed in: 10.0.19043.2006
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
microsoft windows 10 21h2 UPGRADE
Affected: < 10.0.19044.2006
Fixed in: 10.0.19044.2006
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Exact fixes by distribution
Fedora ELN · libslirp · FIXED · 4.9.7-1.eln159 · FEDORA-2026-209cb94e13 · source
sudo dnf upgrade --advisory=FEDORA-2026-209cb94e13
Fedora 46 · modpoll · FIXED · 1.6.1-1.fc46 · FEDORA-2026-60d403ff15 · source
sudo dnf upgrade --advisory=FEDORA-2026-60d403ff15
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- GitHub PoC: fortra/CVE-2022-37969 (134 stars)
- GitHub PoC: NoobCat2000/CVE-2022-37969 (2 stars)
- GitHub PoC: EmilC3978/CVE-2022-37969PoC (2 stars)
Verify at the official source NVD · CVE Program · CISA KEV catalog · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2022-37969?
windows 10 1507: upgrade to 10.0.10240.19444; windows 10 1607: upgrade to 10.0.14393.5356; windows 10 1809: upgrade to 10.0.17763.3406. Exact commands for each OS are on this page.
Is CVE-2022-37969 being exploited?
Yes. CVE-2022-37969 is on the CISA Known Exploited Vulnerabilities list, so treat it as patch-now.
What does CVE-2022-37969 affect?
CVE-2022-37969 affects windows 10 1507, windows 10 1607, windows 10 1809. Severity is high (CVSS 7.8). Windows Common Log File System Driver Elevation of Privilege Vulnerability
How urgent is CVE-2022-37969?
Priority 92/100. High severity; EPSS top 2%: very likely to be exploited; Exploited in the wild (CISA KEV); Used in ransomware campaigns; Public exploit reference; On your watchlist
Software pages
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