Windows
CVE-2026-26119
HIGH
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Windows Admin Center's authentication mechanism can be bypassed by authenticated network users to gain elevated privileges on affected Windows systems. An attacker with valid credentials could exploit this weakness to escalate their access level without additional user interaction. A patch is available to remediate this high-severity vulnerability.
Technical ContextAI
Classified as CWE-287 (Improper Authentication). Affects Windows Admin Center. Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a network.
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
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Same weakness CWE-287 – Improper Authentication
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External POC / Exploit Code
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