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CVE-2026-48564: DHCP Server Service Remote Code Execution Vulnerability

highCVSS 8.8CVE-2026-48564
Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code over a network.

CSIRTS triage

What
Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code over a network.
Who is affected
Authorized attackers with access to the network.
Urgency
Remediation is urgent due to the high severity and potential for remote code execution.
Action
Apply the latest security patch for Windows DHCP Server.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 8.8
Published
2026-07-14
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48564

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-2026-48564coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for DHCP Server Service

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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