EUVD-2026-73574
GHSA-gwjv-mg5h-rf53
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
DHCP processes unauthenticated UDP packets from any network-reachable host; relay-agent reach justifies AV:N; impact is read-only memory disclosure with no integrity or availability component.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
8DescriptionNVD
Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.
AnalysisAI
Out-of-bounds memory read in the Windows DHCP Server service exposes potentially sensitive server memory to unauthenticated remote attackers who send specially crafted DHCP packets. The flaw (CWE-125) spans Microsoft Windows Server 2012 through 2025 and select Windows 10 builds where the DHCP Server role is installed, with Microsoft assigning CVSS 7.5 reflecting full network accessibility and zero authentication requirement. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the target Windows system to have the DHCP Server role explicitly installed and running - this is a non-default configuration absent from standard workstations and servers without the role deployed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Microsoft's CVSS 7.5 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) accurately captures the zero-authentication attack surface of the DHCP protocol, though real-world risk is tempered by deployment scope: only systems with the DHCP Server role explicitly installed are vulnerable, which excludes most Windows workstations and the large majority of servers without the role. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the Microsoft security update through Windows Update, WSUS, or the Microsoft Update Catalog. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct inventory of all systems running the Windows DHCP Server role across Windows Server 2012, 2016, 2019, 2022, and 2025 editions, plus affected Windows 10 builds, and document current patch status. …
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Information Disclosure
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External POC / Exploit Code
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