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PatchSiren cyber security CVE debrief

CVE-2026-58627 Microsoft CVE debrief

CVE-2026-58627 is a high-severity vulnerability in Windows DHCP Server that allows an unauthorized attacker to deny service over a network. The vulnerability has a CVSS score of 7.5 and is classified as CWE-400: Uncontrolled Resource Consumption. Administrators and security teams responsible for Windows DHCP Server infrastructure should review and update configurations to mitigate potential impact. The CVE record was published on 2026-07-14T18:18:44.790Z and has not been modified since then.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-14
Original CVE updated
2026-07-17
Advisory published
2026-07-14
Advisory updated
2026-07-17

Who should care

Administrators and security teams responsible for Windows DHCP Server infrastructure should review and update configurations to mitigate potential impact. They should also monitor network traffic for suspicious activity and implement compensating controls to mitigate potential impact. Additionally, they should check relevant monitoring, detection, and logs for exposed assets that need extra review.

Technical summary

CVE-2026-58627 is a high-severity vulnerability in Windows DHCP Server that allows an unauthorized attacker to deny service over a network. The vulnerability has a CVSS score of 7.5 and is classified as CWE-400: Uncontrolled Resource Consumption. Affected product deployments should be reviewed for potential exposure, and defenders should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Defensive priority

High priority due to potential for denial of service attacks.

Recommended defensive actions

  • Apply patches provided by Microsoft
  • Review and update Windows DHCP Server configurations
  • Monitor network traffic for suspicious activity
  • Implement compensating controls to mitigate potential impact
  • Review compensating controls for exposed systems while remediation is scheduled and verified

Evidence notes

Evidence is based on official CVE and NVD records, as well as vendor advisories from Microsoft. The CVE record was published on 2026-07-14T18:18:44.790Z and has not been modified since then. However, defenders should verify the affected scope and severity with their specific environment and review vendor guidance for mitigation steps. Additionally, they should check relevant monitoring, detection, and logs for exposed assets that need extra review.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-58627 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-58627

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

  • CVE-2026-58627 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-58627

    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.