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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).

Official resources

CVE-2026-44815 was published on 2026-06-09T17:17:17.717Z and modified on 2026-06-11T17:35:59.970Z.