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OpenAdvisories
Medium · 5.3 CVE-2024-27891 EUVD-2024-55611GHSA-6r39-6chc-xxhc

On affected platforms running Arista EOS with MACsec and egress ACLs configured on the same interfaces, the ACL policies may not be enforced for packets egressing on those ports.

Published Jun 4, 2026 · Updated Jun 5, 2026 · Assigned by Arista

Description

On affected platforms running Arista EOS with MACsec and egress ACLs configured on the same interfaces, the ACL policies may not be enforced for packets egressing on those ports. This can cause outgoing packets to incorrectly be allowed or denied.

Affected products

VendorProductAffectedFixed
Arista Networks EOS 4.32.0 – ≤ 4.32.0.1F, 4.31.0 – ≤ 4.31.2F, 4.30.0 – ≤ 4.30.6M, 4.29.0 – ≤ 4.29.7M, 4.28.0 – ≤ 4.28.10.1M, 4.27.2F – < 4.28.0 4.28.0

Advisories 1

References