File Path Manipulation Vulnerability in Synology DiskStation Manager
CVE-2026-6205

8.1HIGH

Key Information:

Vendor

Synology
Status
Diskstation Manager (dsm)
Vendor
CVE Published:
18 September 2026

What is CVE-2026-6205?

An external control of file name or path vulnerability in Synology DiskStation Manager (DSM) prior to specified versions enables remote authenticated users to manipulate file paths. This could allow unauthorized file writes, potentially leading to malicious activities such as denial-of-service attacks. Users are advised to update to the most current versions of DSM to mitigate risks.

Affected Version(s)

DiskStation Manager (DSM) 7.4

DiskStation Manager (DSM) 7.4 < 7.4-90075

DiskStation Manager (DSM) 7.3.2 < 7.3.2-86009-4

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

DungNBN (@greengrass19000) from Viettel Cyber Security Research Lab (@vcslab) working with Scamman from Trung Tâm Săn Lỗi Lậu Hải Ngoại
.