CVE-2024-27891
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.
CVSS Score
5.3
EPSS Score
0.1%
EPSS Percentile
31th
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.
| CWE | CWE-284 |
| Vendor | arista networks |
| Product | eos |
| Published | Jun 4, 2026 |
| Last Updated | Jun 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
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