Synology Assistant (Windows) fixes a high-severity vulnerability

Do you think this report is well-written? *

Yes

Do you use this technology? *

Yes

Was this report useful to you?

Yes

We would be happy if you would describe:

The security services provided by CESNET are designed to provide significant support in ensuring the cybersecurity of connected organizations. Although we strive to provide quality and reliable services, it is not possible to guarantee absolute coverage of all security vulnerabilities. Our services should be seen as a complement to an organization's own security management, not as a replacement. The client bears ultimate responsibility for securing their environment.

This report was translated by AI; nobody has reviewed the translation yet. Original language: Slovak.

[TLP:CLEAR] Synology Assistant (Windows) fixes a high-severity vulnerability

Synology fixes a high-severity vulnerability in Synology Assistant (Windows) in version 7.0.7-50095 [1].

Synology Assistant (Windows) - file access, DoS (CVE-2026-4793)

CVSS 7.3 (High)

An authenticated local attacker can, due to incorrect permissions being assigned during product installation, view or create arbitrary files and possibly carry out a DoS attack [1].

The vulnerability is present in product:

Synology Assistant; <7.0.7-50095;

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

More information:

CVE-2026-4793 at cve.org, NVD
CWE-276: Incorrect Default Permissions at cwe.mitre.org

The vulnerability was publicly disclosed 3. 8. 2026.

Report feedback

[TLP:CLEAR] Synology Assistant (Windows) fixes a high-severity vulnerability

Synology Assistant (Windows) - file access, DoS (CVE-2026-4793)

CVSS 7.3 (High)

Links