Vulnerability in Synology Diskstation Manager (Dsm)
CVE-2026-13639
An insufficient entropy vulnerability in login logic 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 attackers to read or write arbitrary files and conduct denial-of-service attacks.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-13639?
- CVE-2026-13639 is a critical-severity vulnerability in Synology Diskstation Manager (Dsm), classified under Insufficient Entropy. CVSS score: 9.8/10. Published 2026-09-18.
- How severe is CVE-2026-13639?
- Critical severity. CVSS v3 base score is 9.8 out of 10.