EUVD-2026-56322
GHSA-xrgh-3p8w-6q6r
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L confirmed by description; PR:L because 'authorized attacker' requires an existing local account; AC:H consistent with UAF race-condition exploitation; full C/I/A:H reflects arbitrary code execution potential.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Use after free in Windows DHCP Client allows an authorized attacker to execute code locally.
AnalysisAI
Local code execution in the Windows DHCP Client exposes Windows 11 and Windows Server 2025 systems to privilege escalation by authorized local users via a use-after-free memory corruption condition. The flaw (CWE-416) requires high attack complexity - consistent with race-condition-dependent UAF exploitation - and an existing local foothold (PR:L, AV:L), limiting its practical reach compared to its full C:H/I:H/A:H impact triad. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authorized local account (PR:L) - anonymous or remote network access is not sufficient per the AV:L vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 7.0 with vector AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H reflects a bounded but meaningful threat. … 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 documented at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61361. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 11 and Windows Server 2025 systems in your environment and prioritize those with untrusted user accounts or remote access capabilities. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
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Same weakness CWE-416 – Use After Free
View allSame technique Use After Free
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External POC / Exploit Code
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