EUVD-2026-73772
GHSA-7wq6-ff47-wxg9
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-accessible service, low complexity overflow; PR:L confirmed by 'authorized attacker' requirement; full CIA impact from privilege escalation; no scope change.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Management Services allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Heap-based buffer overflow in Windows Management Services enables a network-reachable, low-privileged authenticated attacker to escalate privileges with high impact across confidentiality, integrity, and availability on affected Windows systems. The vulnerability spans a broad range of Windows releases from Windows Server 2012 through Windows Server 2025 and Windows 10 through Windows 11 26H1, making the remediation surface unusually wide. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid low-privilege user account with network connectivity to the Windows Management Services endpoint on the target system - the CVSS PR:L metric confirms authentication is necessary, and AV:N confirms the service is network-reachable. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) reflects a high-severity network-exploitable flaw gated only by low-privilege authentication with no user interaction required. … 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 cumulative updates for CVE-2026-73012 via Windows Update, WSUS, or Microsoft Update Catalog. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct a comprehensive inventory of all Windows Server and Windows client systems to identify affected versions (Windows Server 2012-2025 and Windows 10-11). …
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Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today