CVE-2026-40539

HIGHCVSS 7.10% EPSS

An improper certificate validation vulnerability in Email API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows man-in-the-middle attackers to read or write arbitrary files and conduct denial-of-service attacks.

Published 2026-09-18 · last modified 2026-09-18

Full record at NVD ↗

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Ncerio by BeyondNets · data from NVD, CISA KEV, EPSS.