Vulnerability Details : CVE-2025-29824
Used for ransomware!
Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
Vulnerability category: Memory Corruption
Products affected by CVE-2025-29824
- Microsoft » Windows Server 2008Versions from including (>=) 6.1.7601.0 and before (<) 6.1.7601.27670cpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2008Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2008Versions from including (>=) 6.0.6003.0 and before (<) 6.0.6003.23220cpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2008Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2008Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2008Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
- Microsoft » Windows Server 2012Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2012Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2012Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2012Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2012Versions from including (>=) 6.2.9200.0 and before (<) 6.2.9200.25423cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2012Versions from including (>=) 6.3.9600.0 and before (<) 6.3.9600.22523cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2016Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2016Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2016Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2016Versions from including (>=) 10.0.14393.0 and before (<) 10.0.14393.7970cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2016Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2019Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2019Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2019Versions from including (>=) 10.0.17763.0 and before (<) 10.0.17763.7137cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2019Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2019Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2022Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2022Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2022Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2022Versions from including (>=) 10.0.20348.0 and before (<) 10.0.20348.3454cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2022Versions from including (>=) 10.0.25398.0 and before (<) 10.0.25398.1551cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2022Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2004Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2004Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2004Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2004Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 21h2Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 21h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 21h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 21h2Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 22h2Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 22h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 22h2Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:arm64:*
- Microsoft » Windows 11 22h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
- Microsoft » Windows 10 21h1Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
- Microsoft » Windows 10 21h1Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
- Microsoft » Windows 10 21h1Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
- Microsoft » Windows 10 21h1Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
- Microsoft » Windows 10 21h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 10 21h2Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*
- Microsoft » Windows 10 21h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 10 21h2Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
- Microsoft » Windows 10 20h2Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 10 20h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 10 20h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 10 20h2Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 10 22h2Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 10 22h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
- Microsoft » Windows 10 22h2Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
- Microsoft » Windows 10 22h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*
- Microsoft » Windows Server 20h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 20h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 20h2Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 20h2Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
- cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
- Microsoft » Windows 11 23h2Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 23h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 23h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 23h2Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2022 23h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2022 23h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2022 23h2Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2022 23h2Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2022 23h2Versions from including (>=) 10.0.25398.0 and before (<) 10.0.25398.1551cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 24h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
- Microsoft » Windows 11 24h2Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 24h2Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*
- Microsoft » Windows 11 24h2Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
- Microsoft » Windows Server 2025Versions from including (>=) 10.0.26100.0 and before (<) 10.0.26100.3775cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2025Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
- Microsoft » Windows Server 2025Versions from including (>=) 10.0.22621.0 and before (<) 10.0.22621.5191cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*
- Microsoft » Windows Server 2025Versions from including (>=) 10.0.22631.0 and before (<) 10.0.22631.5191cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
CVE-2025-29824 is in the CISA Known Exploited Vulnerabilities Catalog
This issue is known to have been leveraged as part of a ransomware campaign.
CISA vulnerability name:
Microsoft Windows Common Log File System (CLFS) Driver Use-After-Free Vulnerability
CISA required action:
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 description:
Microsoft Windows Common Log File System (CLFS) Driver contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.
Notes:
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-29824 ; https://nvd.nist.gov/vuln/detail/CVE-2025-29824
Added on
2025-04-08
Action due date
2025-04-29
Exploit prediction scoring system (EPSS) score for CVE-2025-29824
1.86%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 82 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2025-29824
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/... |
N/A
|
N/A
|
Microsoft Corporation | 2025-04-08 |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
Microsoft Corporation | 2025-04-08 |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/... |
N/A
|
N/A
|
MS-CVE-2025-29824 | 2025-04-08 |
CWE ids for CVE-2025-29824
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: secure@microsoft.com (Secondary)
References for CVE-2025-29824
-
https://www.vicarius.io/vsociety/posts/cve-2025-29824-windows-common-log-file-system-driver-elevation-of-privilege-vulnerability-mitigation-script
Exploit;Third Party Advisory
-
https://www.vicarius.io/vsociety/posts/cve-2025-29824-windows-common-log-file-system-driver-elevation-of-privilege-vulnerability-detection-script
Exploit;Third Party Advisory
-
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29824
Vendor Advisory
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