TI-2021-09609 Aliases CVE-2021-28501 GHSA-6m7h-74wg-gq59

Improper authorization in Arista Terminattr

MEDIUM 41CWE-285Published 2022-01-14 · Updated 2024-09-17

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-285.

Summary

An issue has recently been discovered in Arista EOS where the incorrect use of EOS's AAA API’s by the OpenConfig and TerminAttr agents could result in unrestricted access to the device for local users with nopassword configuration.

Why it matters now

EPSS 0.00872 59th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Arista	Terminattr	1.16.2 0	—	No fix listed	CNA

Terminattr VendorArista Affected 1.16.2 0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:arista:terminattr::::::::	up to 1.16.2	Vulnerable	Arista

cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* Versions up to 1.16.2 Vulnerable ·Arista

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-28501
2026-10-03 Alias added: GHSA-6m7h-74wg-gq59

References

Exploit 1

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

TI-2019-13132 Go before 1.12.11 and 1.3.x before 1.13.2 can panic upon an attempt to process network… CVSS 3.1HIGH 7.5
TI-2021-09615 TerminAttr streams IPsec sensitive data in clear text to other authorized users in CVP CVSS 3.1MEDIUM 6.8
TI-2021-09616 TerminAttr streams MACsec sensitive data in clear text to other authorized users in CVP CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences