CVE-2026-3091

Medium

Description

An uncontrolled search path element vulnerability in Synology Presto Client before 2.1.3-0672 allows local users to read or write arbitrary files and conduct denial-of-service during installation by placing a malicious DLL in advance in the same directory as the installer.

SeverityMedium

CVSS6.7

Exploit probability—

ProductSynology Presto Client

PublishedFeb 24, 2026

First seenFeb 24, 2026

Weakness typeCWE-427CWE-427

How to fix

Update

synology presto_client2.1.3-0672 or later

Vendor advisories

synology.com/en-global/security/advisory/Synology_SA_26_02

Affected products

Product	Affected versions	Fixed in
synology presto_client	v < 2.1.3-0672	2.1.3-0672

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