What is CVE-2026-102168?

CVE-2026-102168 is a medium-severity vulnerability, classified under Integer Underflow. CVSS score: 6.5/10. Published 2026-10-06.

How severe is CVE-2026-102168?

Medium severity. CVSS v3 base score is 6.5 out of 10.

CVE-2026-102168

CVE-2026-102168

On affected Arista Wi-Fi access points with Captive Portal enabled, an unauthenticated wireless client connected to a Captive-Portal-enabled SSID can crash the portal service with a crafted HTTP request. This results in a temporary denial of service until the service automatically restarts. Remote code execution is not possible.

Published 2026-10-06 · last modified 2026-10-07.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

CWE-191 — Integer Underflow

References

www.arista.com/en/support/advisories-notices/security-advisory/24810-security-a… (vendor-advisory)

Frequently asked questions

What is CVE-2026-102168?: CVE-2026-102168 is a medium-severity vulnerability, classified under Integer Underflow. CVSS score: 6.5/10. Published 2026-10-06.
How severe is CVE-2026-102168?: Medium severity. CVSS v3 base score is 6.5 out of 10.