CVE-2025-2796 — MEDIUM (5.3)

Vulnerability Description

On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled and anti-replay protection configured, EOS may exhibit unexpected behavior in specific cases. Received duplicate encrypted packets, which should be dropped under normal anti-replay protection, will instead be forwarded due to this vulnerability. Note: this issue does not affect VXLANSec or MACSec encryption functionality.

CVSS Score

5.3

MEDIUM

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

References

https://www.arista.com/en/support/advisories-notices/security-advisory/21413-sec

FAQ

What is CVE-2025-2796?

CVE-2025-2796 is a vulnerability with a CVSS score of 5.3 (MEDIUM). On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled and anti-replay protection configured, EOS may exhibit unexpected behavior in specific cases. Received duplicate...

How severe is CVE-2025-2796?

CVE-2025-2796 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-2796?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.