What is CVE-2018-13280?

CVE-2018-13280 is a high-severity vulnerability in Synology Diskstation Manager, classified under Use of Insufficiently Random Values. CVSS score: 7.4/10. Published 2018-07-30.

How severe is CVE-2018-13280?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Synology Diskstation Manager

CVE-2018-13280

Use of insufficiently random values vulnerability in SYNO.Encryption.GenRandomKey in Synology DiskStation Manager (DSM) before 6.2-23739 allows man-in-the-middle attackers to compromise non-HTTPS sessions via unspecified vectors.

Published 2018-07-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.006 (48.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Synology Diskstation Manager
Synology Diskstation Manager (Dsm) — versions unspecified

Weakness classification (CWE)

CWE-330 — Use of Insufficiently Random Values

References

www.synology.com/en-global/support/security/Synology_SA_18_39 (Vendor Advisory)

Frequently asked questions

What is CVE-2018-13280?: CVE-2018-13280 is a high-severity vulnerability in Synology Diskstation Manager, classified under Use of Insufficiently Random Values. CVSS score: 7.4/10. Published 2018-07-30.
How severe is CVE-2018-13280?: High severity. CVSS v3 base score is 7.4 out of 10.