Medium severity5.3NVD Advisory· Published Jun 4, 2026· Updated Jun 5, 2026

CVE-2024-27891

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Arista/Eosllm-fuzzy

Patches

Vulnerability mechanics

References

www.arista.com/en/support/advisories-notices/security-advisory/19908-security-advisory-0102nvd

News mentions

Arista EOS: Eleven Network Device Vulnerabilities Disclosed Together
Vypr Intelligence · Jun 5, 2026

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