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OpenAdvisories
High · 7.5 CVE-2025-6188 EUVD-2025-25829GHSA-hjjq-j76f-mvq4

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 n

Published Aug 25, 2025 · Updated Aug 27, 2025 · Assigned by Arista

Vendor: Arista Networks Product: EOS Category: Network devices

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.

Affected products

VendorProductAffectedFixed
Arista Networks EOS 4.33.0 – ≤ 4.33.1F, 4.33.1.0 – ≤ 4.33.1.2F, 4.32.4.0 – ≤ 4.32.4.1M, 4.31.0 – ≤ 4.31.6M, 4.30.0 – ≤ 4.30.9.1M —

Advisories 1

References