CVE-2026-13639

State: Published
Severity: 9.8 Critical
Published: Sep 18, 2026
Updated: Sep 18, 2026
Reserved: Jun 29, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	synology

Weaknesses

CWE-331 Insufficient Entropy

Affected Products

Product	Versions
DiskStation Manager (DSM)Synology	7.4 to before 7.4-90075Affected 7.3.2 to before 7.3.2-86009-4Affected 7.2.2 to before 7.2.2-72806-9Affected 7.2.1 to before 7.2.1-69057-12Affected before 7.2.1Unknown

References

Synology-SA-26:13 DSM

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