CVE-2026-4793 Misconfiguration in Synology Assistant

High 7.3 Published Updated

Local attackers can read or write arbitrary files and cause denial of service due to incorrect default permissions in Synology Assistant.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-4793?

CVE-2026-4793 is a high-severity vulnerability in Synology Assistant, published on 3 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-276

Which versions are affected by CVE-2026-4793?

It affects 1 product.

Products include Synology Assistant.

How do I fix CVE-2026-4793?

No fix has been published for CVE-2026-4793 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-4793 being exploited?

There is no known exploitation of CVE-2026-4793 in the wild and no public exploit code.

Sources

Also known as GHSA-x8pf-pjxr-ccfw.

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