What is CVE-2017-8217?

CVE-2017-8217 is a medium-severity vulnerability in TP-Link C2, classified under Missing Authorization. CVSS score: 5.3/10. Published 2017-04-25.

How severe is CVE-2017-8217?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in TP-Link C2

CVE-2017-8217

TP-Link C2 and C20i devices through firmware 0.9.1 4.2 v0032.0 Build 160706 Rel.37961n have too permissive iptables rules, e.g., SNMP is not blocked on any interface.

Vulnerability class: Broken Access Control

Published 2017-04-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (59.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

pierrekim.github.io/blog/2017-02-09-tplink-c2-and-c20i-vulnerable.html (Technical Description, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2017-8217?: CVE-2017-8217 is a medium-severity vulnerability in TP-Link C2, classified under Missing Authorization. CVSS score: 5.3/10. Published 2017-04-25.
How severe is CVE-2017-8217?: Medium severity. CVSS v3 base score is 5.3 out of 10.