CVE-2026-23668
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 · uneditedConcurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Graphics Component 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 confidenceThis is a race condition vulnerability in a Microsoft Graphics Component where concurrent execution leads to improper synchronization when accessing shared resources. An authorized local attacker can exploit the timing window to elevate privileges to higher permission levels.
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< 10.0.14393.8957< 10.0.17763.8511< 10.0.19044.7058< 10.0.19045.7058< 10.0.22631.6783all versions= r2< 10.0.14393.8957< 10.0.17763.8511CVSS 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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Check Windows version and build numberRun 'winver' or 'systeminfo | findstr /B /C:"OS Name" /C:"OS Version"' to retrieve the installed Windows version and build number.Affected if The displayed build number is lower than the threshold for your Windows version (1607: <14393.8957, 1809: <17763.8511, 21h2: <19044.7058, 22h2: <19045.7058, 23h2: <22631.6783) OR the system is Windows Server 2012/2012 R2 of any build.
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Confirm Windows edition for Server 2012If the system is Windows Server 2012, run 'systeminfo' or check the registry at 'HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion' to determine if it is Server 2012 or Server 2012 R2.Affected if The system is any version of Windows Server 2012 or Windows Server 2012 R2.
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Verify graphics component is accessibleConfirm the graphics subsystem is operational by checking if the relevant Windows graphics services (such as 'GraphicsPerfSvc' or display drivers) are running. Run 'Get-Service | Where-Object {$_.DisplayName -like "*Graphics*"}' or inspect Device Manager for display adapters.Affected if Graphics components are loaded and accessible, as the vulnerability exists in a Microsoft Graphics Component that must be present for the race condition to be exploitable.
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Check for existing exploitation indicatorsReview security event logs (Event Viewer > Windows Logs > Security) for suspicious process creation or privilege escalation events, particularly those involving timing-sensitive operations or known privilege escalation patterns.Affected if Unexplained privilege escalation events or timing-anomalous process executions are observed, which could indicate active exploitation of a race condition.
The environment is affected if the installed Windows version and build number fall below the specified thresholds for the relevant Windows 10/11 release, or if the system is any version of Windows Server 2012/2012 R2, and the graphics subsystem is operational.
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 · scoped10.0.14393.895710.0.17763.851110.0.19044.7058
Apply Microsoft security patches for this vulnerability once released. Prioritize patching systems with higher privilege users who could be targets for local privilege escalation.
Windows 10 1607: Build 10.0.14393.8957 | Windows 10 1809: Build 10.0.17763.8511 | Windows 10 21h2: Build 10.0.19044.7058 | Windows 10 22h2: Build 10.0.19045.7058 | Windows 11 23h2: Build 10.0.22631.6783 | Windows Server 2016: Build 10.0.14393.8957 | Windows Server 2019: Build 10.0.17763.8511 | Windo
- Check current Windows build version by running `winver` or `systeminfo | findstr /B /C:"OS Name" /C:"OS Version"`
- Ensure Windows Update service is running: `sc query wuauserv`
- Run Windows Update: `ms-settings:windowsupdate` or use `wuauclt /detectnow /updatenow`
- Install all cumulative updates until the build version matches or exceeds the fixed version for your Windows release
- Verify the update was applied successfully by checking the build version again
- For Windows Server 2012 R2 (all versions), this requires applying the final cumulative update or migrating to a supported Windows Server version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-23668 — 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-2026-23668 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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