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CVE-2026-83923 is a high-severity vulnerability in Microsoft Windows 10 Version 1809 involving a relative path traversal flaw in OpenSSH for Windows. This vulnerability allows an unauthorized attacker to execute code remotely over a network. The issue affects multiple Windows 10 builds prior to specific patched versions. An official fix is available from Microsoft.

This vulnerability (CVE-2026-83923) is a relative path traversal flaw classified under CWE-23 in OpenSSH for Windows on Windows 10 Version 1809. It enables an unauthorized attacker to execute arbitrary code remotely by exploiting the path traversal issue. The CVSS 3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability. Multiple Windows 10 builds are affected, with patches provided by Microsoft as official fixes.

CVE-2026-83923 is a high-severity vulnerability in Microsoft Windows 10 Version 1809 involving a relative path traversal flaw in OpenSSH for Windows. This vulnerability allows an unauthorized attacker to execute code remotely over a network. The issue affects multiple Windows 10 builds prior to spec

CVE-2026-83923: CWE-23: Relative Path Traversal in Microsoft Windows 10 Version 1809

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