CVE-2017-14116

HighCVSS 8.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 8.1/10CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-798

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://www.securityfocus.com/bid/100585Third Party Advisory, VDB Entry
https://threatpost.com/bugs-in-arris-modems-distributed-by-att-vulnerable-to-trivial-attacks/127753/Third Party Advisory
https://www.nomotion.net/blog/sharknatto/Exploit, Mitigation, Technical Description, Third Party Advisory
http://www.securityfocus.com/bid/100585Third Party Advisory, VDB Entry
https://threatpost.com/bugs-in-arris-modems-distributed-by-att-vulnerable-to-trivial-attacks/127753/Third Party Advisory
https://www.nomotion.net/blog/sharknatto/Exploit, Mitigation, Technical Description, Third Party Advisory

Timeline

Published: Sep 3, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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