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CVE-2017-16953

HighPublished

connoppp.cgi on ZTE ZXDSL 831CII devices does not require HTTP Basic Authentication, which allows remote attackers to modify the PPPoE configuration or set...

Published: Dec 1, 2017
Updated: Aug 5, 2024
Assigning CNA: mitre
Evidence observed: Nov 27, 2017

Primary CVSS

7.5/ 10High

nvd · CVSS 3.0

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

EPSS probability estimate

8.5%

Low · next 30 days

Percentile: 94.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

connoppp.cgi on ZTE ZXDSL 831CII devices does not require HTTP Basic Authentication, which allows remote attackers to modify the PPPoE configuration or set up a malicious configuration via a GET request.

Sources

ZTE ZXDSL 831CII - Improper Access RestrictionsExploit
Ibad Shah · hardware · Nov 27, 2017

Responsible use

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