What is CVE-2018-14008?

CVE-2018-14008 is a medium-severity vulnerability in Arista Eos, classified under Improper Authentication. CVSS score: 6.5/10. Published 2019-08-15.

How severe is CVE-2018-14008?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Arista Eos

CVE-2018-14008

Arista EOS through 4.21.0F allows a crash because 802.1x authentication is mishandled.

Vulnerability class: Broken Authentication

Published 2019-08-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.006 (46.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.9% 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

Arista Eos

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.arista.com/en/support/advisories-notices (Vendor Advisory)
www.arista.com/en/support/advisories-notices/security-advisories/6072-security-… (Vendor Advisory)

Frequently asked questions

What is CVE-2018-14008?: CVE-2018-14008 is a medium-severity vulnerability in Arista Eos, classified under Improper Authentication. CVSS score: 6.5/10. Published 2019-08-15.
How severe is CVE-2018-14008?: Medium severity. CVSS v3 base score is 6.5 out of 10.