What’s Vulnerable › Vulnerabilities

CVE-2021-28506: An issue has recently been discovered in Arista EOS where certain gNOI APIs incorrectly skip authorization and authentication which could potentially allow a factory reset of the device.

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-14 · updated 2026-06-17
• Weakness: CWE-285

Description

An issue has recently been discovered in Arista EOS where certain gNOI APIs incorrectly skip authorization and authentication which could potentially allow a factory reset of the device.

Affected products

• Arista Networks EOS: from 4.24.0 through 4.24.7m; from 4.25.0 through 4.25.3; from 4.25.4 through 4.25.4m; from 4.25.5 through 4.25.5.1m; from 4.26.0 through 4.26.2f

References

• https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071
• https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071

Get alerted when CVE-2021-28506 or the next vulnerability affects your stack