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CVE-2026-68840 Microsoft CVE debrief

CVE-2026-68840 is a high-severity vulnerability in the Windows USB Driver that allows an authorized attacker to elevate privileges locally due to a race condition. The CVE record was published on 2026-09-08T18:18:31.810Z and has not been modified since then. The NVD entry is currently Analyzed. This vulnerability affects various versions of Windows 10, Windows 11, and Windows Server. Defenders should prioritize patching and verifying patch deployment to prevent exploitation. The CVSS score is 7, indicating a high-severity vulnerability. IT and security teams should assess and mitigate potential risks, especially for systems with high-risk exposure.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
HIGH 7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-09-16
Advisory published
2026-09-08
Advisory updated
2026-09-16

Who should care

IT and security teams should prioritize patching this vulnerability, especially for systems with high-risk exposure. This requires immediate attention to assess and mitigate potential risks.

Why it matters

CVE-2026-68840 is a high-severity vulnerability in the Windows USB Driver that allows an authorized attacker to elevate privileges locally due to a race condition. Defenders should prioritize patching and verifying patch deployment to prevent exploitation.

  • Local privilege escalation requires immediate patching and verification
  • Authorized attackers can exploit this vulnerability to gain elevated privileges
  • Patch deployment and system configuration verification are necessary to prevent exploitation
  • Vulnerability affects various versions of Windows 10, Windows 11, and Windows Server

Technical summary

The vulnerability is caused by a race condition in the Windows USB Driver, which allows an authorized attacker to elevate privileges locally. The affected products include various versions of Windows 10, Windows 11, and Windows Server. The CVSS score is 7, indicating a high-severity vulnerability.

Defensive priority

Defenders should prioritize patching this vulnerability, especially for systems with high-risk exposure. This requires immediate attention from IT and security teams to assess and mitigate potential risks.

Recommended defensive actions

  • Patch vulnerable systems immediately, especially those with high-risk exposure
  • Assess and mitigate potential risks to IT and security teams
  • Verify patch deployment and system configuration to prevent exploitation

Evidence notes

The vulnerability is caused by a race condition in the Windows USB Driver, which allows an authorized attacker to elevate privileges locally. The affected products include various versions of Windows 10, Windows 11, and Windows Server.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-68840 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-68840

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-68840 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-68840

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.