What is CVE-2018-16738?

CVE-2018-16738 is a low-severity vulnerability in Starwindsoftware Starwind Virtual San, classified under Improper Authentication. CVSS score: 3.7/10. Published 2018-10-10.

How severe is CVE-2018-16738?

Low severity. CVSS v3 base score is 3.7 out of 10.

Auth bypass in Starwindsoftware Starwind Virtual San

CVE-2018-16738

tinc 1.0.30 through 1.0.34 has a broken authentication protocol, although there is a partial mitigation. This is fixed in 1.1.

Vulnerability class: Broken Authentication

Published 2018-10-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.014 (71.6th percentile), scored 2026-11-01.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Starwindsoftware Starwind Virtual San — versions v8
Tinc-Vpn Tinc
Debian Linux — versions 9.0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.tinc-vpn.org/git/browse
tinc-vpn.org/security/ (Vendor Advisory)
www.debian.org/security/2018/dsa-4312 (vendor-advisory, Third Party Advisory)
www.starwindsoftware.com/security/sw-20190227-0002/ (Third Party Advisory)

Frequently asked questions

What is CVE-2018-16738?: CVE-2018-16738 is a low-severity vulnerability in Starwindsoftware Starwind Virtual San, classified under Improper Authentication. CVSS score: 3.7/10. Published 2018-10-10.
How severe is CVE-2018-16738?: Low severity. CVSS v3 base score is 3.7 out of 10.