EUVD-2026-73247
GHSA-6g9c-mq49-q36v
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
DHCP Server listens unauthenticated on UDP/67 (AV:N/PR:N); OOB read leaks memory with no write or availability impact (C:H/I:N/A:N).
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 read (CWE-125) in the Windows DHCP Server service exposes server memory to unauthenticated remote attackers across Windows Server 2012 through 2025 and select Windows 10 builds. A crafted DHCP request packet triggers a read beyond the allocated buffer in the server's packet-processing code, leaking potentially sensitive memory contents with no integrity or availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The Windows DHCP Server role must be explicitly installed and actively running on the target system - it is not present by default on any Windows edition and requires deliberate administrator configuration via Server Manager or PowerShell. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.5 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) reflects straightforward unauthenticated network exploitation with high confidentiality impact. … 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-released security update via Windows Update or WSUS, targeting the fixed build numbers per platform: Windows Server 2019 to 10.0.17763.9245, Windows Server 2016 to 10.0.14393.9512, Windows Server 2022 to 10.0.20348.5622, Windows Server 2025 to 10.0.26100.33438, Windows Server 2012 to 6.2.9200.26349, and Windows Server 2012 R2 to 6.3.9600.23397. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Windows servers running DHCP services using asset management tools and verify which builds are affected (Windows Server 2012 R2, 2016, 2019, 2022, 2025 and qualifying Windows 10 builds). …
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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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