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PatchSiren cyber security CVE debrief

CVE-2026-62807 Microsoft CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record for CVE-2026-62807 was published on 2026-08-11T17:18:34.730Z. This HIGH severity vulnerability, with a CVSS score of 7.8, affects Windows DHCP Server and allows an authorized attacker to elevate privileges locally through improper link resolution before file access. Limited evidence suggests Microsoft as a potential vendor. The vulnerability is classified under CWE-59. To address this vulnerability, system administrators and security teams should focus on verifying and limiting local access to sensitive Windows DHCP Server files and directories, monitoring system logs for unusual privilege escalation attempts, and ensuring proper access controls and permissions are set for DHCP Server operations. It is crucial to review the official CVE record and NVD detail page for comprehensive information. Additionally, verifying the presence of affected product deployments in managed environments and assigning an owner for follow-up is essential. Reviewing compensating controls for exposed systems while remediation is scheduled and verified is also recommended.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-11
Original CVE updated
2026-09-02
Advisory published
2026-08-11
Advisory updated
2026-09-02

Who should care

System administrators and security teams responsible for Windows DHCP Server installations should be aware of this vulnerability and take necessary precautions to prevent local privilege escalation attacks.

Technical summary

CVE-2026-62807 is a HIGH severity vulnerability in Windows DHCP Server that allows an authorized attacker to elevate privileges locally through improper link resolution before file access. The vulnerability has a CVSS score of 7.8 and is classified under CWE-59. Limited evidence suggests Microsoft as a potential vendor.

Defensive priority

This vulnerability allows an authorized attacker to elevate privileges locally on Windows DHCP Server via improper link resolution before file access. Monitor local privilege escalation attempts and ensure proper access controls are in place.

Recommended defensive actions

  • Verify and limit local access to sensitive Windows DHCP Server files and directories.
  • Monitor system logs for unusual privilege escalation attempts.
  • Ensure proper access controls and permissions are set for DHCP Server operations.

Evidence notes

The CVE record indicates a HIGH severity vulnerability with a CVSS score of 7.8. The vulnerability is described as improper link resolution before file access in Windows DHCP Server, allowing local privilege escalation. Microsoft is listed as a potential vendor based on limited evidence.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-62807 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-62807

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

  • CVE-2026-62807 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-62807

    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.