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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2026-40539

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

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Synology DiskStation Manager (DSM)

Default version status: affected

  • 7.3 to < 7.3.2-86009-2affected
  • 7.2.2 to < 7.2.2-72806-7affected
  • 7.2.1 to < 7.2.1-69057-10affected
  • 0 to < 7.2.1unknown

References