CVE-2021-29087

Published: Jun 23, 2021Modified: Jun 17, 2026

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to write arbitrary files via unspecified vectors.

Affected (2)

Products: Synology: Diskstation Manager, Diskstation Manager Unified Controller

Synology

2 products

Diskstation Manager

Diskstation Manager Unified Controller

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Synology Diskstation Manager	From 6.2 to 6.2.3-25426-3
Synology Diskstation Manager Unified Controller	Before 3.1-23033

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (2)

https://www.synology.com/security/advisory/Synology_SA_20_26

Source: security@synology.com

Vendor Advisory

https://www.synology.com/security/advisory/Synology_SA_20_26

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.