CVE-2026-167718.8High
CVE-2026-16771
AT&T · Arris BGW210‑700
Not in CISA KEV
0.4%probability of exploitation in the next 30 days
36th percentile
050100
Higher than 36% of scored CVEs
8.8HighCVSS
LowMediumHighCrit.
DescriptionNVD
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.
Coverage1 article · 1 outlet
First in our coverage: SecurityOnline, 31 Jul.
- Arris BGW210 700 flaw lets attackers bypass AT&T gateway authSecurityOnline · first in our coverage
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