Windows
CVE-2026-20834
MEDIUM
Severity by source
AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
2DescriptionCVE.org
Absolute path traversal in Windows Shell allows an unauthorized attacker to perform spoofing with a physical attack.
AnalysisAI
Windows Shell path traversal vulnerability affecting Windows 10 21H2, Windows Server 2016, 2019, and 2022 allows an attacker with physical access to spoof system resources without requiring user interaction. The vulnerability has no patch available and poses a confidentiality risk through unauthorized information disclosure.
Technical ContextAI
Affects Windows 10 1607. Absolute path traversal in Windows Shell allows an unauthorized attacker to perform spoofing with a physical attack.
RemediationAI
Monitor vendor advisories for a patch. Validate and sanitize file path inputs. Use allowlists.
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Same weakness CWE-36 – Absolute Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
Leaving vuln.today