Remote File Access Flaw in Synology FileStation
CVE-2025-29843

5.4MEDIUM

Key Information:

Vendor

Synology
Status
Synology Router Manager (srm)
Vendor
CVE Published:
4 December 2025

What is CVE-2025-29843?

A vulnerability in Synology's FileStation component enables remote authenticated users to gain unauthorized access to image files. This flaw allows for both reading and writing of sensitive data, posing significant security risks to users' file integrity and confidentiality. Proper user authentication does not mitigate the risk, as the vulnerability exists within the application's handling of file operations.

Affected Version(s)

Synology Router Manager (SRM) 1.3

Synology Router Manager (SRM) 1.3 < 1.3.1-9346-13

References

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

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Qian Chen (@cq674350529) from Codesafe Team of Legendsec at QI-ANXIN Group
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