Vulnerability · Published Sep 9, 2021 · Assigned by Arista
CVE-2021-28494
Critical 9.6
In plain English
A critical-severity improper authentication in Metamako Operating System from Arista. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).
Severity (CVSS 3.1)9.6Critical
Exploit odds (30 days)0.9%top 40.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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 Operating System MOS-0.34.0 and prior releases
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Arista | Metamako Operating System | MOS-0.35.0 – before MOS-0.35.0 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H