Synology-SA-26:02 Synology Presto Client
Publish Time: UTC+8
Last Updated: UTC+8
- Severity
- Moderate
- Status
- Resolved
Abstract
Synology has released a security update for the Presto Client on Windows to address a vulnerability :
- CVE-2026-3091 allows local users to read or write arbitrary files.
Please refer to the 'Affected Products' table for the corresponding updates.
Affected Products
| Product | Severity | Fixed Release Availability |
|---|---|---|
| Synology Presto Client | Moderate | Upgrade to 2.1.3-0672 or above. |
Mitigation
None
Detail
- CVE-2026-3091
- Severity: Moderate
- CVSS3 Base Score: 6.7
- CVSS3 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- CWE-427: Uncontrolled Search Path Element
- 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.
Acknowledgement
Sahil Shah
Reference
Revision
| Revision | Date | Description |
|---|---|---|
| 1 | 2026-02-24 | Initial public release. |
| 2 | 2026-02-24 | Disclosed vulnerability details. |