VULNERABILITY INTELLIGENCE

CVE-2021-28510

CVSS score5.3 MEDIUM
EPSS probability1.00%
CISA KEVNot currently listed
Published2023-01-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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.

Weakness classification

  • psirt@arista.com: CWE-400
  • nvd@nist.gov: CWE-1284

Primary references