CRLF injection in DiskStation Manager (DSM) - CVE-2026-40530
Published: April 16, 2026
Vulnerability identifier: #VU126262
CSH Severity: Medium
CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-40530
CWE-ID: CWE-93
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to read or write arbitrary files and cause a denial of service.
The vulnerability exists due to improper neutralization of CRLF sequences in DSM when handling crafted input. A remote user can send specially crafted input to read or write arbitrary files and cause a denial of service.
User interaction is required.
Affected software
DiskStation Manager (DSM)
How to mitigate CVE-2026-40530
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