CVE-2025-27468
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 Secure Kernel Mode allows an authorized 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 confidenceImproper privilege management in Windows Secure Kernel Mode allows a local authorized attacker to elevate privileges. This vulnerability exists in the secure kernel isolation layer, potentially allowing an attacker with existing local access to bypass security boundaries and gain higher-level system privileges.
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< 10.0.10240.21014< 10.0.14393.8066< 10.0.17763.7314< 10.0.19044.5854< 10.0.19045.5854< 10.0.22621.5335< 10.0.22631.5335< 10.0.26100.4061CVSS 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
- High
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:H/PR:L/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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Retrieve Windows build numberOpen Command Prompt and run 'ver' or 'systeminfo | findstr /B /C:"OS Version"' to display the installed Windows build numberAffected if The displayed build number is lower than any of these thresholds: 10240.21014 (Win10 1507), 14393.8066 (Win10 1607), 17763.7314 (Win10 1809), 19044.5854 (Win10 21h2/22h2), 22621.5335 (Win11 22h2), 22631.5335 (Win11 23h2), or 26100.4061 (Win11 24h2)
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Identify Windows releaseRun 'winver' or check System Properties to confirm whether the system is Windows 10 version 1507, 1607, 1809, 21h2, 22h2, or Windows 11 version 22h2, 23h2, or 24h2Affected if The system runs any of the listed Windows 10 or Windows 11 versions and the build number falls below the corresponding threshold in the affected version list
A system is affected if it runs any of the specified Windows 10 or Windows 11 versions with a build number lower than the fixed version for that release branch, since the vulnerability exists in the Secure Kernel Mode component present in these Windows versions.
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 · scoped10.0.10240.2101410.0.14393.806610.0.17763.7314
Apply Microsoft security updates for Windows Secure Kernel Mode once available. Prioritize patching systems with higher privilege users or external-facing services.
Windows 10 1507: 10.0.10240.21014 | Windows 10 1607: 10.0.14393.8066 | Windows 10 1809: 10.0.17763.7314 | Windows 10 21h2: 10.0.19044.5854 | Windows 10 22h2: 10.0.19045.5854 | Windows 11 22h2: 10.0.22621.5335 | Windows 11 23h2: 10.0.22631.5335 | Windows 11 24h2: 10.0.26100.4061
- Identify the current Windows version by running 'winver' or 'systeminfo' in Command Prompt
- Open Settings > Windows Update or run 'ms-settings:windowsupdate'
- Check for and install the latest cumulative security update for your Windows version
- Alternatively, download the specific security update from Microsoft Update Catalog (search for the KB article associated with CVE-2025-27468)
- Restart the computer after the update is installed
- Verify the patch was applied by checking the installed updates or running 'systeminfo' to confirm the build number matches or exceeds the fixed version for your Windows release
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-27468 — 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-2025-27468 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
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