Improper Link Resolution in Synology DiskStation Manager
CVE-2026-19048

8.1HIGH

Key Information:

Vendor

Synology
Status
Diskstation Manager (dsm)
Vendor
CVE Published:
12 November 2026

What is CVE-2026-19048?

An improper link resolution vulnerability exists in Synology DiskStation Manager that impacts versions prior to 7.3.2-86009-5 and 7.4.1-90080-1. This flaw allows remote authenticated users to manipulate file paths, leading to the ability to write arbitrary files on the system. Such capabilities can be exploited to launch denial-of-service attacks, affecting the overall functionality and availability of the DiskStation Manager. For more information on mitigations and recommendations, please refer to the official advisory.

Affected Version(s)

DiskStation Manager (DSM) 7.4.1

DiskStation Manager (DSM) 7.4.1 < 7.4.1-90080-1

DiskStation Manager (DSM) 7.3.2 < 7.3.2-86009-5

References

https://www.synology.com/en-global/security/advisory/Syno...

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Name: chwrld (@chwrld24) Website: https://x.com/chwrld24
.