Vulnerability in Arista Networks Wi-Fi Access Points

[ Description ]Official description

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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund6 Oct 2026WID-SEC-2026-3775

  Arista WiFi Access Point: Multiple vulnerabilities Translated from German

  CVE-2026-102163CVE-2026-102169CVE-2026-102167+4 more CVEs

[ References ]References

• www.arista.com/en/support/advisories-notices/security-advisory/24810-security-advisory-…