EUVD-2026-73567
GHSA-mhfc-8mjg-g3f4
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Network-facing DHCP listener requires no auth; AC:H reflects exploitation complexity for reliable stack overflow control; full C/I/A because SYSTEM-level RCE on DHCP host.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Stack-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
AnalysisAI
Stack-based buffer overflow in the Windows DHCP Server service enables network-adjacent unauthenticated attackers to achieve remote code execution across a broad range of Windows Server versions, from Server 2012 through Server 2025. The flaw (CWE-121) resides in the DHCP server's packet-processing logic, where a malformed client request can overwrite the stack frame and redirect execution - effectively granting SYSTEM-level code execution on the host. …
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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 actively running on the target host - this role is not enabled by default on any listed Windows version and must be explicitly provisioned by an administrator. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.1 score is substantiated by the network-reachable, zero-authentication attack surface of DHCP, but AC:H materially limits real-world exploitability - reliable exploitation almost certainly demands heap/stack layout fingerprinting or a triggered race condition, making opportunistic mass exploitation unlikely at launch. … 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 | Vendor-released patch is available from Microsoft via the standard Windows Update and WSRC channels. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, create an inventory of all Windows Server instances running DHCP service across versions 2012 through 2025 to determine your exposure. …
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Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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