CVE-2024-27891
MEDIUM EPSS 19.9%
Published Jun 4, 20263w ago · Modified Jun 17, 20262w ago
6.9 CVSS 4.0
Published Jun 4, 2026 3w ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
19.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-284
References 1
- arista.com https://www.arista.com/en/support/advisories-notices/security-advisory/19908-security-advisory-0102
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.