CVE-2026-50414
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 Windows Media allows an authorized attacker to elevate privileges over a network.
In the news
Third-party coverage- Microsoft July 2026 Patch Tuesday fixes massive 570 flaws, 3 zero-days
- Microsoft CVE Summary - Bleeping Computer
Surfaced from public web coverage — external links open in a new tab.
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 confidenceA race condition vulnerability exists in Windows Media where improper synchronization of shared resources allows an authenticated attacker to elevate privileges. The flaw enables concurrent execution to corrupt or manipulate state, leading to privilege escalation from a network-adjacent position.
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< 10.0.26100.8875< 10.0.26200.8875< 10.0.28000.2269< 10.0.28000.2525< 10.0.26100.33158CVSS 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
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/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.
-
Check installed Windows build versionRun 'winver' from command prompt or execute 'systeminfo | findstr /B /C:"OS Version"' to display the full build number including the 10.0.xxxxx.xxxxx formatAffected if The build number falls below 10.0.26100.8875 (Windows 11 24h2), 10.0.26200.8875 (Windows 11 25h2), 10.0.28000.2269 or 10.0.28000.2525 (Windows 11 26h1), or 10.0.26100.33158 (Windows Server 2025)
-
Confirm Windows edition and version branchRun 'winver' or check Settings > System > About to verify whether the system is Windows 11 24h2, 25h2, 26h1, or Windows Server 2025Affected if The system is identified as one of the affected editions and the corresponding version check above indicates a vulnerable build
-
Verify Windows Media component presenceCheck for the presence of Windows Media features by running 'Get-WindowsOptionalFeature -Online -FeatureName *Media*' in PowerShell with admin rights, or inspect 'C:\Windows\System32\WindowsMedia*.dll' filesAffected if Windows Media components are installed on the system, as the race condition affects systems where this feature is present
The system is affected if it runs any of the listed Windows versions/builds with Windows Media components installed and the installed build number is below the patched thresholds.
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 · scoped10.0.26100.887510.0.26100.3315810.0.26200.8875
Apply Microsoft security updates for Windows Media when released. Prioritize patching on systems where non-privileged users have network access. Restrict Windows Media functionality to trusted users and monitor for anomalous process behavior.
Windows 11 24h2: Build 10.0.26100.8875 or later | Windows 11 25h2: Build 10.0.26200.8875 or later | Windows 11 26h1: Build 10.0.28000.2525 or later | Windows Server 2025: Build 10.0.26100.33158 or later
- Open Windows Settings and navigate to Windows Update
- Check for available security updates by clicking 'Check for updates'
- Ensure the update includes the security fix for CVE-2026-50414
- Alternatively, manually install the relevant Windows security update from the Microsoft Update Catalog
- Restart the system after applying the update
- Verify the installed build version meets or exceeds the fixed version for your Windows edition
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-50414 — 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-2026-50414 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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