CVE-2025-29812

SYSTEM privilege escalation via unvalidated pointer dereference

Published Apr 8, 2025 · Updated Aug 10, 2026

Untrusted pointer dereference in dxkrnl.sys in Microsoft Windows allows local users to elevate privileges to SYSTEM via low-privileged code. The driver dereferences a user-supplied value as a pointer without first validating that value. An attacker must already be able to execute low-privileged code locally; successful exploitation permits arbitrary code execution in the SYSTEM context.

CVSS severity7.8
High
EPSS probability0.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Untrusted pointer dereference in dxkrnl.sys in Microsoft Windows allows local users to elevate privileges to SYSTEM via low-privileged code. The driver dereferences a user-supplied value as a pointer without first validating that value. An attacker must already be able to execute low-privileged code locally; successful exploitation permits arbitrary code execution in the SYSTEM context.

The record

CVE
CVE-2025-29812
Published
Apr 8, 2025
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Windows Server 2025 (Server Core installation)
Classifications
CWE-822, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.26100.0 <10.0.26100.3775

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows Server 2025 (Server Core installation)version=10.0.26100.0 <10.0.26100.3775
Microsoft · Windows 11, version 24H2version=10.0.26100.0 <10.0.26100.3775
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.1551
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22631.5189
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.5189
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.5189
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.3453
Microsoft · Windows Server 2025version=10.0.26100.0 <10.0.26100.3775

Published CVSS scores

7.8Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-822Untrusted Pointer Dereference
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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