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Vulnerability record · CVE-2018-16738 · published 10 October 2018

CVE-2018-16738: Tinc-vpn tinc improper authentication vulnerability

Tinc Vpn · Tinc

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.

3.7 CVSS 3.1 Low EPSS 1.4% · top 29.5% CWE-287 · Improper authentication
3.7CVSS 3.1 base score, v2 4.3
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://tinc-vpn.org/security/ Vendor Advisory
http://www.tinc-vpn.org/git/browse?p=tinc%3Ba=commit%3Bh=d3297fbd3b8c8c8a4661f5bbf89aca5cacba8b5a
https://www.debian.org/security/2018/dsa-4312 Third Party Advisory
https://www.starwindsoftware.com/security/sw-20190227-0002/ Third Party Advisory
http://tinc-vpn.org/security/ Vendor Advisory
http://www.tinc-vpn.org/git/browse?p=tinc%3Ba=commit%3Bh=d3297fbd3b8c8c8a4661f5bbf89aca5cacba8b5a
https://www.debian.org/security/2018/dsa-4312 Third Party Advisory
https://www.starwindsoftware.com/security/sw-20190227-0002/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-16738), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.