CVE-2026-6205 — HIGH (8.1) — White Hats Nepal

Vulnerability Description

An external control of file name or path vulnerability in Upload API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated users to write arbitrary files and conduct denial-of-service attacks.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-73

References

https://www.synology.com/en-global/security/advisory/Synology_SA_26_13

FAQ

What is CVE-2026-6205?

CVE-2026-6205 is a vulnerability with a CVSS score of 8.1 (HIGH). An external control of file name or path vulnerability in Upload API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated...

How severe is CVE-2026-6205?

CVE-2026-6205 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-6205?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.