EUVD-2026-73270
GHSA-v573-qgcw-w49f
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
DHCP is unauthenticated (PR:N), relay-forwarded packets make AV:N defensible, and impact is availability-only (C:N/I:N/A:H).
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
5DescriptionCVE.org
Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
AnalysisAI
Out-of-bounds read in Windows DHCP Server (CWE-125) allows unauthenticated remote attackers to crash the DHCP service, denying IP address assignment to all clients on affected subnets. The vulnerability spans a wide range of Windows Server versions from 2012 through 2025, as well as Windows 10 builds with the DHCP Server role enabled. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The Windows DHCP Server role must be installed and running on an affected Windows Server (or Windows 10) build - this role is not enabled by default and must be explicitly configured by an administrator. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) reflects a straightforward, unauthenticated network-reachable DoS against a critical infrastructure service. … 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 Microsoft's cumulative updates via Windows Update or WSUS to reach the fixed builds: Server 2025 to 10.0.26100.33438 or later, Server 2022 to 10.0.20348.5622 or later, Server 2019 to 10.0.17763.9245 or later, Server 2016 to 10.0.14393.9512 or later, Server 2012 R2 to 6.3.9600.23397 or later, Server 2012 to 6.2.9200.26349 or later, and Windows 10 1607/1809 to the corresponding 10.0.14393.9512 / 10.0.17763.9245 builds. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Windows Server 2012-2025 systems and Windows 10 machines with DHCP Server role enabled; cross-reference against your current build versions and confirm patch availability from Microsoft. …
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Same weakness CWE-125 – Out-of-bounds Read
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External POC / Exploit Code
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