What is CVE-2017-18641?

CVE-2017-18641 is a high-severity vulnerability in Linuxcontainers Lxc, classified under Improper Authentication. CVSS score: 8.1/10. Published 2020-02-10.

How severe is CVE-2017-18641?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Linuxcontainers Lxc

CVE-2017-18641

In LXC 2.0, many template scripts download code over cleartext HTTP, and omit a digital-signature check, before running it to bootstrap containers.

Vulnerability class: Broken Authentication

Published 2020-02-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (74.4th percentile), scored 2026-10-23.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.015 · change: +0.002

Affected products

Linuxcontainers Lxc — versions 2.0.0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

bugs.launchpad.net/ubuntu/+source/lxc/+bug/1661447 (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2017-18641?: CVE-2017-18641 is a high-severity vulnerability in Linuxcontainers Lxc, classified under Improper Authentication. CVSS score: 8.1/10. Published 2020-02-10.
How severe is CVE-2017-18641?: High severity. CVSS v3 base score is 8.1 out of 10.