PT-2026-65570 · At&T · Arris Bgw210‑700

CVE-2026-16771 · Publicado 2026-07-28 · Atualizado 2026-07-28

NVD

CVSS v3.1

8.8

Alta

Vetor base

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

In firmware versions 2.7.7 and earlier, the Arris BGW210‑700 gateway fails to enforce any server‑side authentication on its /cgi-bin/*.ha management endpoints, relying solely on client‑side CSS/JavaScript gating that can be bypassed by any HTTP client. This allows unauthenticated attackers on the LAN to read sensitive configuration data, modify persistent device settings, or trigger backend diagnostic operations. The issue appears systemic across the CGI handler chain.

Correção

Missing Authentication

Enumeração de Fraquezas

CWE-306

Identificadores relacionados

CVE-2026-16771

Produtos afetados

Arris Bgw210‑700

Referências · 2

• https://kb.cert.org/vuls/id/141367 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-16771 · Nota de Segurança