EUVD-2026-73487
GHSA-25m8-mw95-w935
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Local attack requires authenticated low-privileged user; AC:H reflects heap-grooming or race condition complexity; full kernel access on success yields C:H/I:H/A:H.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
AnalysisAI
Use-after-free in the Windows Win32K kernel subsystem allows a locally authenticated attacker to escalate privileges to SYSTEM on affected Windows 10 and Windows Server 2012 through 2019 systems. Microsoft has released patches via MSRC addressing builds across all listed version ranges, including Server 2012, 2012 R2, 2016, 2019, and Windows 10 1607 and 1809. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid local authenticated session on the target system (AV:L, PR:L); remote unauthenticated attack is not possible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.0 base score with vector AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H is consistent with the described local privilege escalation: the local attack vector and high complexity correctly constrain mass exploitation, while the PR:L requirement means only valid user sessions can attempt this. … 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-2026-69410 via Windows Update or the Microsoft Update Catalog. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct an inventory of Windows 10 (builds 1607, 1809) and Windows Server systems (2012, 2012 R2, 2016, 2019) to determine organizational exposure scope. …
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Same weakness CWE-416 – Use After Free
View allSame technique Denial Of Service
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External POC / Exploit Code
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