SB2025051718 - Access control rules bypass in Arista EOS
Published: May 17, 2025
Security Bulletin ID
SB2025051718
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Security features bypass (CVE-ID: CVE-2024-27891)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to an unspecified error on 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.
Remediation
Install update from vendor's website.