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PatchSiren cyber security CVE debrief

CVE-2026-44815 Microsoft CVE debrief

CVE-2026-44815 is a critical vulnerability in the Windows DHCP Client that allows an unauthorized attacker to execute code over a network. The vulnerability has a CVSS score of 9.8 and is classified as CRITICAL. It was published on 2026-06-09T17:17:17.717Z and modified on 2026-06-11T17:35:59.970Z.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-11
Advisory published
2026-06-09
Advisory updated
2026-06-11

Who should care

Administrators and users of Windows operating systems should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability is a stack-based buffer overflow in the Windows DHCP Client. This allows an attacker to execute arbitrary code over a network.

Defensive priority

High

Recommended defensive actions

  • Apply patches and updates from Microsoft as soon as possible.
  • Use secure communication protocols and validate user input.
  • Monitor network traffic and system logs for suspicious activity.

Evidence notes

The vulnerability is confirmed by Microsoft and has been analyzed by the National Vulnerability Database (NVD).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-44815 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-44815

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

  • CVE-2026-44815 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-44815

    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.