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. This can cause outgoing packets to incorrectly be allowed or denied.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.arista.com/en/support/advisories-notices/security-advisory/19908-security-advisory-0102

Configurations

No configuration.

History

04 Jun 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-04 23:16

Updated : 2026-06-05 15:02

NVD link : CVE-2024-27891

Mitre link : CVE-2024-27891

CVE.ORG link : CVE-2024-27891

JSON object : View

Products Affected

No product.

CWE

CWE-284

Improper Access Control

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