EUVD-2026-73586
GHSA-g3vc-vvwr-fm53
Severity by source
AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Adjacent-only DHCP protocol scope, low-privilege authorized attacker, crash-only outcome with no confidentiality or integrity impact align with provided vector.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
5DescriptionCVE.org
Out-of-bounds read in Windows DHCP Server allows an authorized attacker to deny service over an adjacent network.
AnalysisAI
Out-of-bounds read in Windows DHCP Server enables an adjacent-network attacker with low privileges to crash the DHCP service, denying network address configuration to clients on the affected subnet. The flaw spans Windows Server 2012 through 2025, plus select Windows 10 builds, and carries a CVSS 5.7 Medium rating reflecting its adjacency constraint and authentication requirement. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must be on the same adjacent network segment (broadcast domain) as the Windows DHCP Server, or able to send DHCP messages via a relay agent - cross-routed remote exploitation is not possible given AV:A. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The Medium CVSS 5.7 score (AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) accurately reflects the constrained attack surface: adjacency limits the attacker to the same broadcast domain, and PR:L (consistent with the description's 'authorized attacker' framing) means anonymous unauthenticated exploitation is not supported by the available data. … 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 updates detailed at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69679. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-125 – Out-of-bounds Read
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External POC / Exploit Code
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