Vulnerability in Synology Assistant

CVE-2026-4793

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (4.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-4793: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-4793?
CVE-2026-4793 is a high-severity vulnerability in Synology Assistant, classified under Incorrect Default Permissions. CVSS score: 7.3/10. Published 2026-08-03.
How severe is CVE-2026-4793?
High severity. CVSS v3 base score is 7.3 out of 10.