Vulnerability in Arista Networks Wi-Fi Access Points

[ Description ]Official description

On affected Arista Wi-Fi access points with captive portal, or application firewall enabled on at least one SSID, a vulnerability in the wireless gateway service could allow an unauthenticated network-adjacent attacker to send a crafted packet that triggers a stack overflow, resulting in a denial-of-service condition or potentially execute arbitrary code on the device. The wireless gateway service is automatically restarted after a crash, allowing repeated exploitation attempts.

[ 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/24809-security-advisory-…