CVE-2026-3091

Published Feb 24, 2026 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Uncontrolled Search Path Element Allows Local Users to Read/Write Arbitrary Files During Installation
Type Values Removed Values Added
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 during installation by placing a malicious DLL in advance in the same directory as the installer. 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.
Type Values Removed Values Added
Title Uncontrolled Search Path Element Allows Local Users to Read/Write Arbitrary Files During Installation
Type Values Removed Values Added
First Time appeared Synology presto Client
CPEs cpe:2.3:a:synology:presto_client:*:*:*:*:*:*:*:*
Vendors & Products Synology presto Client
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Synology
Synology synology Presto Client
Vendors & Products Synology
Synology synology Presto Client
Type Values Removed Values Added
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 during installation by placing a malicious DLL in advance in the same directory as the installer.
Weaknesses CWE-427
References
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
synology
Published
Updated
Jun 2, 2026, 8:32 AM
Reserved
Feb 24, 2026, 1:34 AM
Status
Analyzed
Published
Feb 24, 2026, 3:16 AM
Modified
Jun 17, 2026, 10:43 AM