CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

CVE-2026-44815: DHCP Client Service Remote Code Execution Vulnerability

criticalCVSS 9.8CVE-2026-44815
Stack-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to execute code over a network.

CSIRTS triage

What
A stack-based buffer overflow allows an unauthorized attacker to execute code over a network.
Who is affected
All Windows systems using the DHCP Client service.
Urgency
Remediation is critical urgency due to the high severity and potential for remote code execution.
Action
Install the security patch provided by Microsoft.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Windows DHCP Client

Get an email when a new Windows DHCP Client advisory drops — max one per day, one-click unsubscribe.

Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
critical — CVSS 9.8
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44815

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-44815coverage & exploitation statusNVD · CVE.org

More from Microsoft Security Response Center