What’s Vulnerable › Vulnerabilities
CVE-2026-6205
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-18 · updated 2026-09-18
- Weakness: CWE-73
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.
Affected products
- Synology DiskStation Manager: from 7.4 before 7.4-90075; from 7.3.2 before 7.3.2-86009-4; from 7.2.2 before 7.2.2-72806-9; from 7.2.1 before 7.2.1-69057-12 — fixed in 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4, 7.4-90075
How to fix
Upgrade to a fixed version: Synology DiskStation Manager 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4, 7.4-90075. Check the vendor advisory for mitigations.
References
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