CVE-2025-33067
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImproper privilege management in Windows Kernel allows an unauthorized attacker to elevate privileges locally.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThis is a local privilege escalation vulnerability in the Windows Kernel stemming from improper privilege management. An unauthenticated attacker with local access can exploit this flaw to elevate their privileges, potentially gaining SYSTEM-level access on the affected system.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 10.0.10240.21034< 10.0.14393.8148< 10.0.17763.7434< 10.0.19044.5965< 10.0.19045.5965< 10.0.22621.5472< 10.0.22631.5472< 10.0.26100.4270CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check Windows version and build numberOpen Command Prompt and run 'winver' to see the Windows version and build number, or run 'systeminfo | findstr /B /C:"OS Name" /C:"OS Version"' for detailed version info.Affected if The displayed build number falls below the threshold for your specific Windows release as listed in the affected versions.
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Identify exact Windows 10 releaseRun 'systeminfo' and look at the 'OS Name' field. Windows 10 releases are identified by their version numbers: 1507 (initial release), 1607 (Anniversary Update), 1809 (October 2018 Update), 21h2 (October 2021 Update), 22h2 (2022 Update).Affected if You are running Windows 10 and the build number is less than 10.0.10240.21034 (1507), 10.0.14393.8148 (1607), 10.0.17763.7434 (1809), 10.0.19044.5965 (21h2), or 10.0.19045.5965 (22h2) respectively.
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Identify exact Windows 11 releaseRun 'systeminfo' and look at the 'OS Name' field. Windows 11 releases are identified by their version numbers: 22h2 (initial release), 23h2 (2023 Update), 24h2 (2024 Update).Affected if You are running Windows 11 and the build number is less than 10.0.22621.5472 (22h2), 10.0.22631.5472 (23h2), or 10.0.26100.4270 (24h2) respectively.
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Verify build number via registryOpen Registry Editor and navigate to 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion'. Check the 'CurrentBuild' and 'DisplayVersion' values to confirm the exact build and version.Affected if The 'CurrentBuild' number is lower than the threshold for your detected Windows release.
You are affected if your Windows version matches one of the listed releases AND your current build number is below the specific threshold for that release.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped10.0.10240.2103410.0.14393.814810.0.17763.7434
Apply the relevant Microsoft security patch for this vulnerability (refer to the associated Microsoft Security Response Center advisory for the specific KB article). Prioritize patching systems with direct user access or those exposed to untrusted users.
Upgrade to the specific fixed build for your Windows release: 10.0.10240.21034 (Win10 1507), 10.0.14393.8148 (Win10 1607), 10.0.17763.7434 (Win10 1809), 10.0.19044.5965 (Win10 21h2), 10.0.19045.5965 (Win10 22h2), 10.0.22621.5472 (Win11 22h2), 10.0.22631.5472 (Win11 23h2), or 10.0.26100.4270 (Win11 2
- Identify the current Windows version and build by running 'winver' or 'systeminfo' in Command Prompt
- Determine which Windows 10/11 release branch you are on (1507, 1607, 1809, 21h2, 22h2, or Windows 11 22h2/23h2/24h2)
- Open Settings > Windows Update and check for updates, or manually download the appropriate security update from the Microsoft Update Catalog for your specific Windows version
- Install the security update that includes the fix: Windows 10 1507 to build 10.0.10240.21034, Windows 10 1607 to build 10.0.14393.8148, Windows 10 1809 to build 10.0.17763.7434, Windows 10 21h2 to build 10.0.19044.5965, Windows 10 22h2 to build 10.0.19045.5965, Windows 11 22h2 to build 10.0.22621.5472, Windows 11 23h2 to build 10.0.22631.5472, or Windows 11 24h2 to build 10.0.26100.4270
- Restart the system after the update is installed
- Verify the build version matches or exceeds the fixed build for your Windows release
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-33067 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-33067 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data