Is CVE-2026-13639 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-13639?

CVE-2026-13639 has a CVSS v3 severity of CRITICAL (9.8).

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CVE-2026-13639

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.