---
id: CVE-2026-4793
title: >-
  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.
summary: >-
  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.
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-276
vendor: synology
product: assistant
affected:
  - assistant < 7.0.7-50095
patched:
  - assistant 7.0.7-50095
published: '2026-08-03'
updated: '2026-08-21'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-4793'
references:
  - url: 'https://www.synology.com/en-global/security/advisory/Synology_SA_26_12'
    label: security@synology.com
tags:
  - nvd
epss: 0.0015
epssPercentile: 0.0457
ingestedAt: '2026-08-22T13:32:35.773Z'
---

## Overview

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.

## Affected

- `assistant < 7.0.7-50095`

## Remediation

Upgrade past the affected range:

- `assistant 7.0.7-50095`