CVE-2026-40539

Published: Sep 18, 2026Modified: Sep 18, 2026

7.1

Vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 1.2 / Impact: 5.9

Source: security@synology.com (Secondary)

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.

Related CWEs

CWE-295

Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

References (1)

https://www.synology.com/en-global/security/advisory/Synology_SA_26_06

Source: security@synology.com

Timeline

No history available yet.