CVE•Published 2026-07-28•Modified 2026-07-28•1 article on news•4 live references•NVD data
CVE-2026-16771
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
—
Weaknesses (CWE)
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.
Timeline
Published 2026-07-28
Modified 2026-07-28
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-16771Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-16771Censys host search filtered to this CVE id.
grep.app
CVE-2026-16771Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-16771GitHub code search for direct mentions.
Google dork
"CVE-2026-16771" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-16771 on GitHub.