Windows 10 1809
CVE-2026-20858
HIGH
Severity by source
AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
2DescriptionCVE.org
Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation in Windows Management Services affects Windows 10, Windows 11, and Windows Server 2022 through a use-after-free memory vulnerability. An authenticated local attacker can exploit this flaw to gain elevated system privileges. Currently no patch is available and exploitation requires specific conditions to trigger.
Technical ContextAI
Classified as CWE-362 (Race Condition). Affects the Windows Management component of Windows 10 1809. Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
RemediationAI
Monitor vendor advisories for a patch.
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Same weakness CWE-362 – Race Condition
View allSame technique Denial Of Service
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External POC / Exploit Code
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