CVE-2026-4793

Local Permissions Misconfiguration Enabling Arbitrary File Read/Write and Installation Denial in Synology Assistant

Published Aug 3, 2026 CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Description
An incorrect default permissions vulnerability in Synology Assistant before 7.0.7-50095 allows local users to read or write arbitrary files and conduct denial-of-service during installation.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
CPEs cpe:2.3:a:synology:assistant:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows
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 assistant
Vendors & Products Synology
Synology assistant
Type Values Removed Values Added
Title Local Permissions Misconfiguration Enabling Arbitrary File Read/Write and Installation Denial in Synology Assistant
Type Values Removed Values Added
Description An incorrect default permissions vulnerability in Synology Assistant before 7.0.7-50095 allows local users to read or write arbitrary files and conduct denial-of-service during installation.
Weaknesses CWE-276
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
synology
Published
Updated
Aug 3, 2026, 2:54 PM
Reserved
Mar 25, 2026, 12:47 AM
Status
Analyzed
Published
Aug 3, 2026, 7:16 AM
Modified
Oct 23, 2026, 10:10 PM