CVE-2018-16758

5.9 MEDIUM 0.9% exploit odds Fix listed

What it is

Missing message authentication in the meta-protocol in Tinc VPN version 1.0.34 and earlier allows a man-in-the-middle attack to disable the encryption of VPN packets.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure.
Exploit odds: 0.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2018-10-10 21:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 01:44 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.9% in the next 30 days (EPSS).
Severity: 5.9 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2018-10-10 21:29 UTC
Last modified: 2026-06-17 01:44 UTC
Exploit probability: 0.9% · EPSS, next 30 days
Weakness: CWE-306 · Missing authentication
Record status: Modified

Affected

tinc-vpn Tinc ≤ 1.0.34
Debian Linux 9.0
Starwindsoftware Starwind Virtual San v8

Attack profile CVSS 3.1 · 5.9

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2018-16758.md and follow it. Check whether this project is affected by CVE-2018-16758. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

· More options · Status badge

Download Square Reddit

Fix and advisories

References

NVD record · CVE.org record