EUVD-2026-73271
GHSA-m4p9-hm95-m54c
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Network-reachable DHCP service, unauthenticated packets trigger the flaw; only availability is impacted with no confidentiality or integrity effects.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
AnalysisAI
Denial-of-service via out-of-bounds read in Windows DHCP Server allows a remote, unauthenticated attacker to crash the DHCP service across a broad range of Windows Server versions. Exploitation requires only network access and no authentication, making it trivially reachable by any host on a network segment served by the vulnerable DHCP role. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special end-user conditions are required from the victim side. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, score 7.5) accurately reflects the core threat: unauthenticated remote denial of service with low attack complexity. … 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 distributed through Windows Update and WSUS, targeting the specific build thresholds listed: Windows Server 2025 to 10.0.26100.33438 or later, Windows Server 2022 to 10.0.20348.5622 or later, Windows Server 2019 to 10.0.17763.9245 or later, Windows Server 2016 to 10.0.14393.9512 or later, Windows Server 2012 R2 to 6.3.9600.23397 or later, and Windows Server 2012 to 6.2.9200.26349 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify and inventory all Windows DHCP Server deployments and cross-reference against affected versions per Microsoft security advisory; immediately schedule patch validation in non-production environments. …
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Buffer Overflow
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External POC / Exploit Code
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