BaseFortify

Publication date: 2026-09-18

Last updated on: 2026-09-18

Assigner: Synology Inc.

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-18

Last Modified

2026-09-18

Generated

2026-09-20

EPSS Evaluated

N/A

NVD

CVE-2026-40539

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-295	The product does not validate, or incorrectly validates, a certificate.

Attack-Flow Graph

AI Quick Actions have not been generated yet.

Hi! I’m here to help you understand CVE-2026-40539. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70