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Synology Hyper Backup Path Traversal Vulnerability in Backup Task Functionality

Vulnerability

A path traversal vulnerability has been identified in the Backup Task feature of Synology Hyper Backup, in versions prior to 4.1.2-4036. This vulnerability allows remote authenticated users to write specific files by improperly limiting the pathname to a restricted directory.

Impact

Exploitation of this vulnerability could lead to unauthorized file writing on the affected system.

Added: Jun 3, 2026, 2:23 PM
Updated: Jun 3, 2026, 2:23 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
0.2
exploitability
5.2
remediation
0.0
relevance
9.9
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.