CVE-2025-6188
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductEOS
PublishedAug 25, 2025
First seenAug 25, 2025
Weakness typeCWE-290CWE-290
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Arista Networks EOS | 4.33.0 ≤ v ≤ 4.33.1F, 4.33.1.0 ≤ v ≤ 4.33.1.2F, 4.32.4.0 ≤ v ≤ 4.32.4.1M, 4.31.0 ≤ v ≤ 4.31.6M, 4.30.0 ≤ v ≤ 4.30.9.1M | — |
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