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CVE-2026-62720: Windows DHCP Server Information Disclosure Vulnerability

mediumCVSS 6.5CVE-2026-62720
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.

CSIRTS triage

vendor: Microsoftproduct: Windows DHCP ServerInformation disclosure
What
Integer underflow in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
Who is affected
Organizations running Windows DHCP Server on networks where unauthorized adjacent access is possible.
Urgency
Medium priority; exploitation does not appear to be active and requires adjacent network access, though severity is moderate.
Action
Apply Microsoft security patch when available; restrict network access to DHCP services where possible.

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

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 6.5
Published
2026-08-11
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62720

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-2026-62720coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

Recent advisories for Windows DHCP Server

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.

More from Microsoft Security Response Center