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 Echo Reply. This can result in unexpected behaviors, especially for UDP based services that do n

State
Published
Severity
7.5 High
Published
Aug 25, 2025
Updated
Aug 27, 2025
Reserved
Jun 16, 2025

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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.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NArista

Weaknesses

  • CWE-290 Authentication Bypass by Spoofing

Affected Products

ProductVersions
EOSArista Networks
  • 4.33.0 through 4.33.1FAffected
  • 4.33.1.0 through 4.33.1.2FAffected
  • 4.32.4.0 through 4.32.4.1MAffected
  • 4.31.0 through 4.31.6MAffected
  • 4.30.0 through 4.30.9.1MAffected

References

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