What is CVE-2025-2796?

CVE-2025-2796 is a medium-severity vulnerability in Arista Networks Eos, classified under Improper Access Control. CVSS score: 5.3/10. Published 2025-05-27.

How severe is CVE-2025-2796?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Arista Networks Eos

CVE-2025-2796

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.

EPSS: 0.002 (8.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Arista Networks Eos — versions 4.33.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

psirt@arista.com

Frequently asked questions

What is CVE-2025-2796?: CVE-2025-2796 is a medium-severity vulnerability in Arista Networks Eos, classified under Improper Access Control. CVSS score: 5.3/10. Published 2025-05-27.
How severe is CVE-2025-2796?: Medium severity. CVSS v3 base score is 5.3 out of 10.