- Description
- Windows Common Log File System Driver Elevation of Privilege Vulnerability
- Source
- secure@microsoft.com
- NVD status
- Analyzed
- Products
- windows_10_1507, windows_10_1607, windows_10_1809, windows_10_1909, windows_10_20h2, windows_10_21h1, windows_10_21h2, windows_11_21h2, windows_7, windows_8.1, windows_rt_8.1, windows_server_2008, windows_server_2012, windows_server_2016, windows_server_2019, windows_server_2022, windows_server_20h2
CVSS 3.1
- Type
- Secondary
- Base score
- 7.8
- Impact score
- 5.9
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 4.6
- Impact score
- 6.4
- Exploitability score
- 3.9
- Vector string
- AV:L/AC:L/Au:N/C:P/I:P/A:P
Data from CISA
- Vulnerability name
- Microsoft Windows CLFS Driver Privilege Escalation Vulnerability
- Exploit added on
- Apr 13, 2022
- Exploit action due
- May 4, 2022
- Required action
- Apply updates per vendor instructions.
- nvd@nist.gov
- NVD-CWE-noinfo
- 134c704f-9b21-4f2e-91b3-4a467353bcc0
- CWE-787
- Hype score
- Not currently trending
Ransomware vulns with highest exploit likelihood ⬆️ (past 30d): - CVE-2021-27876 (Veritas Veritas..) +273.78% - CVE-2022-24521 (CLFS..) +238.29% - CVE-2021-27878 (Veritas Veritas..) +163.49% - CVE-2023-27351 (PaperCut Applic..) +95.65% - CVE-2023-20269 (ASA..) +82.95%
@DefusedCyber
22 Nov 2025
2032 Impressions
1 Retweet
12 Likes
5 Bookmarks
1 Reply
1 Quote
Ransomware vulns with highest exploit likelihood ⬆️ (past 30d): - CVE-2021-27877 (Veritas Veritas..) +934.92% - CVE-2025-29824 (CLFS..) +289.16% - CVE-2021-30116 (Kaseya VSA..) +223.20% - CVE-2022-24521 (CLFS..) +208.83% - CVE-2023-20269 (ASA..) +168.29%
@DefusedCyber
11 Nov 2025
1497 Impressions
1 Retweet
13 Likes
3 Bookmarks
0 Replies
0 Quotes
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