What is CVE-2021-28494?

CVE-2021-28494 is a critical-severity vulnerability in Arista 7130, classified under Improper Authentication. CVSS score: 9.6/10. Published 2021-09-09.

How severe is CVE-2021-28494?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Auth bypass in Arista 7130

CVE-2021-28494

In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, authentication is bypassed by unprivileged users who are accessing the Web UI. This issue affects: Arista Metamako…

Vulnerability class: Broken Authentication

EPSS: 0.009 (55.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H.

Affected products

Arista 7130
Arista Metamako Operating System — versions MOS-0.35.0
Arista Metamako_operating_system

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

psirt@arista.com (x_refsource_MISC, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2021-28494?: CVE-2021-28494 is a critical-severity vulnerability in Arista 7130, classified under Improper Authentication. CVSS score: 9.6/10. Published 2021-09-09.
How severe is CVE-2021-28494?: Critical severity. CVSS v3 base score is 9.6 out of 10.