Path traversal in DiskStation Manager (DSM) - CVE-2026-40536
Published: April 16, 2026
Vulnerability identifier: #VU126269
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-40536
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose limited information.
The vulnerability exists due to path traversal in DSM when processing crafted path input. A remote user can send a specially crafted request to disclose limited information.
Affected software
DiskStation Manager (DSM)
How to mitigate CVE-2026-40536
Install security update from vendor's website.
DiskStation Manager (DSM) - addressed in versions 7.2.1-69057-10, 7.2.2-72806-7, 7.3.2-86009-2