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Vulnerability record · CVE-2016-8380 · published 5 April 2018

CVE-2016-8380: Phoenixcontact ilc plcs firmware improper authentication vulnerability

Phoenixcontact · Ilc Plcs Firmware

The web server in Phoenix Contact ILC PLCs allows access to read and write PLC variables without authentication.

7.3 CVSS 3.0 High EPSS 11% · top 4.3% CWE-767 · CWE-767CWE-287 · Improper authentication
7.3CVSS 3.0 base score, v2 7.5
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

The web server in Phoenix Contact ILC PLCs allows access to read and write PLC variables without authentication.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/94163 Third Party AdvisoryVDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-313-01 Third Party AdvisoryUS Government Resource
https://www.exploit-db.com/exploits/45590/
http://www.securityfocus.com/bid/94163 Third Party AdvisoryVDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-313-01 Third Party AdvisoryUS Government Resource
https://www.exploit-db.com/exploits/45590/

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.3CVE-2016-8366Phoenixcontact ilc plcs firmware cleartext storage of sensitive data vulnerabilityWebvisit in Phoenix Contact ILC PLCs offers a password macro to protect HMI pages on the PLC against casual or coincidental opening of HMI pages by t…EPSS 5.7%7.3CVE-2016-8371Phoenixcontact ilc plcs firmware improper authentication vulnerabilityThe web server in Phoenix Contact ILC PLCs can be accessed without authenticating even if the authentication mechanism is enabled.EPSS 11%

Source: NIST National Vulnerability Database (record CVE-2016-8380), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.