EUVD-2026-73249
GHSA-2x92-6f94-2256
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
DHCP server accepts unauthenticated network packets by design; OOB read exposes memory with no write or availability impact path.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
9DescriptionNVD
Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.
AnalysisAI
Out-of-bounds read in the Windows DHCP Server component allows unauthenticated network attackers to disclose potentially sensitive server memory contents by sending a specially crafted DHCP packet. The flaw spans a broad range of Windows releases from Server 2012 through Server 2025 and certain Windows 10 builds, with Microsoft-confirmed patches available and exact fix build numbers documented by ENISA EUVD-2026-73249. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No authentication is required - DHCP by design accepts unauthenticated packets from any network client, so PR:N accurately reflects the protocol's open nature. … 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:H/I:N/A:N confirms unauthenticated, low-complexity network exploitation with confidentiality-only impact - there is no code execution or denial-of-service component disclosed. … 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 for CVE-2026-70124, delivered via Windows Update, WSUS, or SCCM, targeting the minimum fixed builds documented per platform in EUVD-2026-73249 (e.g., Windows Server 2025 to 10.0.26100.33438, Windows Server 2022 to 10.0.20348.5622, Windows Server 2019 to 10.0.17763.9245, Windows Server 2016 to 10.0.14393.9512). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows DHCP servers currently deployed across Server 2012-2025 editions and affected Windows 10 builds. …
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Threat intelligence, references, and detailed analysis are available after sign-in.
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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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