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CVE-2021-28510

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CVE-2021-28510

Published: Jan 24, 2023

Modified: Apr 1, 2025

PUBLISHED

CVSS v3.1

5.3

MEDIUM

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.

VendorProductVersions

Arista Networks

EOS

affected
4.22
affected
4.27.1 - <= 4.27.0
affected
4.26.4 - <= 4.26.0
affected
4.25.6 - <= 4.25.0
affected
4.24.8 - <= 4.24.0

+1 more versions

Weaknesses (CWE)

CWE-400

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

References

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