CVE-2026-102169

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. The service automatically restarts, but a sustained low-rate attack can cause a persistent denial of service of the captive portal. Remote code execution is not possible.

Score

CVSS 4.0 7.1 High

Status

Awaiting Analysis - psirt@arista.com

Published

2026-10-06

Last modified

2026-10-07

Weaknesses

CWE-476

Affected products

• Wi-fi Access Points (Arista Networks)

References

• https://www.arista.com/en/support/advisories-notices/security-advisory/24810-security-advisory-0194