Relative Path Traversal in Windows Server - CVE-2026-118213
Published: November 11, 2026
Vulnerability identifier: #VU165057
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-118213
CWE-ID: CWE-23
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose file contents.
The vulnerability exists due to relative path traversal in Windows Deployment Services when processing network requests containing file paths. A remote attacker can supply a specially crafted relative path to access files outside the intended directory and disclose their contents.
Affected software
Windows Server
How to mitigate CVE-2026-118213
Install security update from vendor's website.
Windows Server - addressed in versions 2016 10.0.14393.9688, 2019 10.0.17763.9487, 2022 10.0.20348.5870, 2025 10.0.26100.33730, 2025 10.0.26100.33822