CVE-2025-8873 — HIGH (7.5) — White Hats Nepal

Vulnerability Description

On affected platforms running Arista EOS with IPsec configured, a specially crafted packet can cause the dataplane to stop processing all IPsec traffic. The control plane may detect this condition, and attempt to reset the IPsec processing pipeline. After reset traffic may not resume being processed. There is no impact to non-IPsec traffic or to IPsec traffic not originating or terminating on the system. This issue was reported by an Arista customer.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Related Weaknesses (CWE)

CWE-1286

References

https://www.arista.com/en/support/advisories-notices/security-advisory/22869-sec

FAQ

What is CVE-2025-8873?

CVE-2025-8873 is a vulnerability with a CVSS score of 7.5 (HIGH). On affected platforms running Arista EOS with IPsec configured, a specially crafted packet can cause the dataplane to stop processing all IPsec traffic. The control plane may detect this condition, an...

How severe is CVE-2025-8873?

CVE-2025-8873 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-8873?

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