CVEvulnerability

CVE-2026-16771

8.8 HIGH Published 2026-07-28 Modified 2026-10-23 Official page ↗
Status
Deferred
Published
2026-07-28
Last modified
2026-10-23
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-306

Description

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.

Related

Weakness · CWE (1)

  • CWE-306 Missing Authentication for Critical Functionality weakness

References