CVE-2021-28510
MEDIUMArista EOS < 4.23.10 - Denial of Service via Invalid PTP TLV
Title source: llmDescription
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.
References (1)
Core 1
Core References
Exploit, Mitigation, Vendor Advisory
https://www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076
Scores
CVSS v3
5.3
EPSS
0.0100
EPSS Percentile
58.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-1284
CWE-400
Status
published
Products (1)
arista/eos
< 4.23.10
Published
Jan 26, 2023
Tracked Since
Feb 18, 2026