CVE-2021-28510

PoC —

CVSS 3.1

7.5 high

EPSS

1%p61

Published

Jan 26, 2023 (Jan 26, 2023)

Modified

Jun 17, 2026

Description

For certain systems running EOS, a Precision Time Protocol (PTP) packet of a management/signaling message with an invalid Type-Length-Value (TLV) causes the PTP agent to restart. Repeated restarts of the service will make the service unavailable.

Vendors: arista
Products: eos
Weakness: CWE-400, CWE-1284
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (1.0%)

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