EUVD-2026-73273
GHSA-g2c7-5489-9r7w
Severity by source
AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Local-only exploitation by an already-privileged administrator under high-complexity conditions; full code execution impact if preconditions are met.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in Windows DHCP Server allows an authorized attacker to execute code locally.
AnalysisAI
Out-of-bounds read (CWE-125) in the Windows DHCP Server service permits a locally present, highly privileged attacker to achieve code execution on the host system. The CVSS vector (AV:L/AC:H/PR:H) confirms this is not a remote or unauthenticated threat - exploitation requires an authorized administrator already present on the system with the DHCP Server role installed and under specific attack conditions. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authorized local attacker (AV:L) with high-privilege access (PR:H) - specifically, the attacker must hold administrative rights on the target host running the Windows DHCP Server role. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 6.4 score reflects the substantial exploitation constraints: local attack vector (AV:L), high attack complexity (AC:H), and high privilege requirement (PR:H) all significantly bound real-world applicability. … 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 vendor-released security updates via Windows Update or the Microsoft Security Response Center guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77887. … Detailed patch versions, workarounds, and compensating controls in full report. |
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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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