dbcve.org
Windows 10 1507Operating system · Microsoft

CVE-2025-59187

HIGH · 7.8 CVSS v3.1 Published 2025-10-14
Fix available
A fix is available. Upgrade to 10.0.10240.21161 / 10.0.14393.8519 or later.
See remediation →
80/100
Remediation priority · High
Zero-click

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 · unedited
Improper input validation in Windows Kernel 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 confidence

Improper input validation in the Windows Kernel allows a locally authorized attacker to execute code with elevated privileges by exploiting insufficient validation of user-mode input passed to kernel-mode operations.

MitigationApply the Microsoft security update for CVE-2025-59187 via Windows Update to patch the kernel-level input validation flaw.

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
Windows 10 1507Operating system
Affected:< 10.0.10240.21161
Windows 10 1607Operating system
Affected:< 10.0.14393.8519
Windows 10 1809Operating system
Affected:< 10.0.17763.7919
Windows 10 21h2Operating system
Affected:< 10.0.19044.6456
Windows 10 22h2Operating system
Affected:< 10.0.19045.6456
Windows 11 22h2Operating system
Affected:< 10.0.22621.6060
Windows 11 23h2Operating system
Affected:< 10.0.22631.6060
Windows 11 24h2Operating system
Affected:< 10.0.26100.6899

CVSS 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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/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 checks

Work through these to decide whether this CVE applies to you.

  1. Check installed Windows version
    Run 'winver' or 'systeminfo | findstr /B /C:"OS Name" /C:"OS Version"' to retrieve the Windows build number
    Affected if The build number falls below the fixed versions: 10240.21161 (1507), 14393.8519 (1607), 17763.7919 (1809), 19044.6456 (21h2), 19045.6456 (22h2), 22621.6060 (22h2), 22631.6060 (23h2), 26100.6899 (24h2)
  2. Verify patch installation status
    Check Windows Update history or run 'wmic qfe list' to list installed hotfixes; look for the security update corresponding to CVE-2025-59187
    Affected if The CVE-2025-59187 security update is not listed among installed hotfixes
  3. Confirm kernel mode access is present
    This vulnerability requires a locally authorized user to pass malicious input to kernel-mode operations; verify normal user accounts exist on the system
    Affected if The system has user accounts and the unpatched kernel is running, allowing a locally authorized attacker to exploit the input validation flaw

A system is affected if it runs any of the listed Windows 10 or Windows 11 versions below the fixed build numbers AND lacks the CVE-2025-59187 security update.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 10.0.10240.21161 / 10.0.14393.8519 / 10.0.17763.7919 or later
Fixed in 10.0.10240.2116110.0.14393.851910.0.17763.7919
Interim mitigation

Apply the Microsoft security update for CVE-2025-59187 via Windows Update to patch the kernel-level input validation flaw.

Recommended fix High confidence

Windows 10 1507: 10.0.10240.21161 | Windows 10 1607: 10.0.14393.8519 | Windows 10 1809: 10.0.17763.7919 | Windows 10 21h2: 10.0.19044.6456 | Windows 10 22h2: 10.0.19045.6456 | Windows 11 22h2: 10.0.22621.6060 | Windows 11 23h2: 10.0.22631.6060 | Windows 11 24h2: 10.0.26100.6899

  1. Open Settings > Update & Security > Windows Update and check for updates
  2. Install all available security updates for Windows
  3. If automatic updates are disabled, manually download the cumulative security update from the Microsoft Update Catalog for your specific Windows version
  4. After installation, verify the build number matches or exceeds the fixed version for your Windows release using winver or systeminfo
  5. Restart the system to complete the update installation
Caveat Standard Windows update deployment - test mission-critical applications before broad rollout in enterprise environments

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Windows 10 1507 Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,750
Get the upgrade done

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 locally
dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-59187 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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