CVE-2025-6188

published 2025-08-25

CVE-2025-6188: On affected platforms running Arista EOS, maliciously formed UDP packets with source port 3503 may be accepted by EOS. UDP Port 3503 is associated with LspPing…

Priority P3 45 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I H A N

On affected platforms running Arista EOS, maliciously formed UDP packets with source port 3503 may be accepted by EOS. UDP Port 3503 is associated with LspPing Echo Reply. This can result in unexpected behaviors, especially for UDP based services that do not perform some form of authentication.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
arista_networks	eos	4.30.0 – 4.30.9.1M	—
arista_networks	eos	4.31.0 – 4.31.6M	—
arista_networks	eos	4.32.4.0 – 4.32.4.1M	—
arista_networks	eos	4.33.0 – 4.33.1F	—
arista_networks	eos	4.33.1.0 – 4.33.1.2F	—

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CWE-290