Medium severity6.1NVD Advisory· Published May 26, 2022· Updated Jun 17, 2026
CVE-2021-28509
CVE-2021-28509
Description
This advisory documents the impact of an internally found vulnerability in Arista EOS state streaming telemetry agent TerminAttr and OpenConfig transport protocols. The impact of this vulnerability is that, in certain conditions, TerminAttr might leak MACsec sensitive data in clear text in CVP to other authorized users, which could cause MACsec traffic to be decrypted or modified by other authorized users on the device.
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Affected products
5cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:*range: <1.10.11
- (no CPE)
- Arista Networks/Arista EOSv5Range: 4.23
- Arista Networks/Arista TerminAttrv5Range: v1.10
Patches
Vulnerability mechanics
References
1- www.arista.com/en/support/advisories-notices/security-advisories/15484-security-advisory-0077nvdExploitVendor Advisory
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