NVD / CVE Program· CNA microsoft

CVE-2025-29824: Windows Common Log File System Driver Elevation of Privilege Vulnerability

HighCVSS 7.8 · v3.1KEVWeaponized Fix available

Noroxi assessment

Priority: This week (action score 67/100)

CISA has confirmed exploitation in the wild (Apr 8, 2025); it is known to be used in ransomware campaigns. Remediation deadline for US federal agencies: Apr 29, 2025.
Probability of exploitation in the next 30 days: 19.2% (FIRST EPSS); higher than 97.3% of all records.
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Windows 10 for 32-bit Systems 10.0.10240.20978; Windows 10 for x64-based Systems 10.0.10240.20978; Windows 10 Version 1607 for 32-bit Systems 10.0.14393.7969.

Don’t wait for the next maintenance window. Upgrade to Windows 10 for 32-bit Systems 10.0.10240.20978; Windows 10 for x64-based Systems 10.0.10240.20978; Windows 10 Version 1607 for 32-bit Systems 10.0.14393.7969 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

BDU:2025-03926

Published: Apr 8, 2025
Updated: Aug 10, 2026
EPSS: 19.2% · 97th percentile
CWE: CWE-416

Report tools

JSON

Action score

This week

Don’t wait for the next maintenance window.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 30 / 30 · Listed
EPSS: 6 / 30 · 19.2%

CISA SSVC decision

Exploitation: active
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · microsoft: 7.8; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Apr 8, 2025. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Apr 29, 2025.

Known to be used in ransomware campaigns.

Get told when this record changes

In CISA KEV: exploitation in the wild confirmed
Weaponized exploit exists
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
microsoft	windows 10 1507	cpe:2.3:o:microsoft:windows_10_1507
microsoft	windows 10 1607	cpe:2.3:o:microsoft:windows_10_1607
microsoft	windows 10 1809	cpe:2.3:o:microsoft:windows_10_1809
microsoft	windows 10 21h2	cpe:2.3:o:microsoft:windows_10_21h2
microsoft	windows 10 22h2	cpe:2.3:o:microsoft:windows_10_22h2
microsoft	windows 11 22h2	cpe:2.3:o:microsoft:windows_11_22h2
microsoft	windows 11 23h2	cpe:2.3:o:microsoft:windows_11_23h2
microsoft	windows 11 24h2	cpe:2.3:o:microsoft:windows_11_24h2
microsoft	windows server 2008	cpe:2.3:o:microsoft:windows_server_2008
microsoft	windows server 2012	cpe:2.3:o:microsoft:windows_server_2012
microsoft	windows server 2016	cpe:2.3:o:microsoft:windows_server_2016
microsoft	windows server 2019	cpe:2.3:o:microsoft:windows_server_2019

and 3 more

Versions reported by the vendor

Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.

Microsoft Windows 10 Version 1507
- 10.0.10240.0 and later · before 10.0.10240.20978affected
Microsoft Windows 10 Version 1607
- 10.0.14393.0 and later · before 10.0.14393.7969affected
Microsoft Windows 10 Version 1809
- 10.0.17763.0 and later · before 10.0.17763.7136affected
Microsoft Windows 10 Version 21H2
- 10.0.19044.0 and later · before 10.0.19044.5737affected
Microsoft Windows 10 Version 22H2
- 10.0.19045.0 and later · before 10.0.19045.5737affected
Microsoft Windows 11 version 22H2
- 10.0.22621.0 and later · before 10.0.22621.5189affected
Microsoft Windows 11 version 22H3
- 10.0.22631.0 and later · before 10.0.22631.5189affected
Microsoft Windows 11 Version 23H2
- 10.0.22631.0 and later · before 10.0.22631.5189affected
Microsoft Windows 11 Version 24H2
- 10.0.26100.0 and later · before 10.0.26100.3775affected
Microsoft Windows Server 2008 R2 Service Pack 1
- 6.1.7601.0 and later · before 6.1.7601.27670affected
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- 6.1.7601.0 and later · before 6.1.7601.27670affected
Microsoft Windows Server 2008 Service Pack 2
- 6.0.6003.0 and later · before 6.0.6003.23220affected

Affected versions · NVD (9)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

microsoft windows server 2008all versions
microsoft windows server 2008r2
microsoft windows server 2012all versions
microsoft windows server 2012r2
microsoft windows server 2016before 10.0.14393.7969
microsoft windows server 2019before 10.0.17763.7136
microsoft windows server 2022before 10.0.20348.3453
microsoft windows server 2022 23h2before 10.0.25398.1551
microsoft windows server 2025before 10.0.26100.3775

Same product

microsoft: all records

Other highest-scoring records for the same primary product.

CVE-2021-34527Windows Print Spooler Remote Code Execution VulnerabilityKEV
95Now
CVE-2021-40444Microsoft MSHTML Remote Code Execution VulnerabilityKEV
94Now
CVE-2025-33053Internet Shortcut Files Remote Code Execution VulnerabilityKEV
91Now

Published before and after this one in the same product

← EarlierCVE-2025-29809Apr 8, 2025 · Windows Kerberos Security Feature Bypass Vulnerability
29Monitor
← EarlierCVE-2025-29810Apr 8, 2025 · Active Directory Domain Services Elevation of Privilege Vulnerability
31Monitor
Later →CVE-2025-24063May 13, 2025 · Kernel Streaming Service Driver Elevation of Privilege Vulnerability
31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Windows 10 for 32-bit Systems	10.0.10240.20978 · KB5055547	Microsoft (MSRC)
Windows 10 for x64-based Systems	10.0.10240.20978 · KB5055547	Microsoft (MSRC)
Windows 10 Version 1607 for 32-bit Systems	10.0.14393.7969 · KB5055521	Microsoft (MSRC)
Windows 10 Version 1607 for x64-based Systems	10.0.14393.7969 · KB5055521	Microsoft (MSRC)
Windows 10 Version 1809 for 32-bit Systems	10.0.17763.7136 · KB5055519	Microsoft (MSRC)
Windows 10 Version 1809 for x64-based Systems	10.0.17763.7136 · KB5055519	Microsoft (MSRC)
Windows 10 Version 21H2 for 32-bit Systems	10.0.19044.5737 · KB5055518	Microsoft (MSRC)
Windows 10 Version 21H2 for ARM64-based Systems	10.0.19044.5737 · KB5055518	Microsoft (MSRC)
Windows 10 Version 21H2 for x64-based Systems	10.0.19044.5737 · KB5055518	Microsoft (MSRC)
Windows 10 Version 22H2 for 32-bit Systems	10.0.19045.5737 · KB5055518	Microsoft (MSRC)
Windows 10 Version 22H2 for ARM64-based Systems	10.0.19045.5737 · KB5055518	Microsoft (MSRC)
Windows 10 Version 22H2 for x64-based Systems	10.0.19045.5737 · KB5055518	Microsoft (MSRC)
Windows 11 Version 22H2 for ARM64-based Systems	10.0.22621.5189 · KB5055528	Microsoft (MSRC)
Windows 11 Version 22H2 for x64-based Systems	10.0.22621.5189 · KB5055528	Microsoft (MSRC)
Windows 11 Version 23H2 for ARM64-based Systems	10.0.22631.5189 · KB5055528	Microsoft (MSRC)
Windows 11 Version 23H2 for x64-based Systems	10.0.22631.5189 · KB5055528	Microsoft (MSRC)
Windows 11 Version 24H2 for ARM64-based Systems	10.0.26100.3775 · KB5055523	Microsoft (MSRC)
Windows 11 Version 24H2 for x64-based Systems	10.0.26100.3775 · KB5055523	Microsoft (MSRC)
Windows Server 2008 for 32-bit Systems Service Pack 2	6.0.6003.23220 · KB5055609	Microsoft (MSRC)
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)	6.0.6003.23220 · KB5055609	Microsoft (MSRC)
Windows Server 2008 for x64-based Systems Service Pack 2	6.0.6003.23220 · KB5055609	Microsoft (MSRC)
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)	6.0.6003.23220 · KB5055609	Microsoft (MSRC)
Windows Server 2008 R2 for x64-based Systems Service Pack 1	6.1.7601.27670 · KB5055561	Microsoft (MSRC)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)	6.1.7601.27670 · KB5055561	Microsoft (MSRC)
Windows Server 2012	6.2.9200.25423 · KB5055581	Microsoft (MSRC)
Windows Server 2012 (Server Core installation)	6.2.9200.25423 · KB5055581	Microsoft (MSRC)
Windows Server 2012 R2	6.3.9600.22523 · KB5055557	Microsoft (MSRC)
Windows Server 2012 R2 (Server Core installation)	6.3.9600.22523 · KB5055557	Microsoft (MSRC)
Windows Server 2016	10.0.14393.7969 · KB5055521	Microsoft (MSRC)
Windows Server 2016 (Server Core installation)	10.0.14393.7969 · KB5055521	Microsoft (MSRC)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

Proof-of-concept repository on GitHub ×4

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	4 repositories	2025-05-14 → 2026-03-17

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

CISA KEVApr 8, 2025-1 d
PublishedApr 8, 2025
First PoCMay 14, 2025+35 d
TodayNov 14, 2026+585 d

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2024-38193238 days apartWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityKEV
70This week
CVE-2025-3270935 days apartWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityKEV
62This week
CVE-2025-3270135 days apartWindows Common Log File System Driver Elevation of Privilege VulnerabilityKEV
61This week
CVE-2025-2129884 days apartWindows OLE Remote Code Execution Vulnerability
61This week
CVE-2024-38107238 days apartWindows Power Dependency Coordinator Elevation of Privilege VulnerabilityKEV
61This week
CVE-2023-35628483 days apartWindows MSHTML Platform Remote Code Execution Vulnerability
60This week

Not on record for this CVE: patch commit or PR link · researcher credit · public bounty program.

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1free(dev->buf);
2/* ... another thread is still running ... */
3process(dev->buf);

Fixed

1lock(&dev->lock);
2free(dev->buf);
3dev->buf = NULL;
4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log (1)

Fix✗ → ✓Oct 12, 2026, 3:30 AM UTC

For records you follow, these changes also arrive as notifications. →

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29824

Show all references (1 more)

www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-29824

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records