CVE-2016-8371

HIGHNVD 7.37.3—Elevated

7.3

The web server in Phoenix Contact ILC PLCs can be accessed without authenticating even if the authentication mechanism is enabled.

CVSS v3: 7.3
EG Score: 7.3(medium)
EPSS: 94.1%
KEV: Not listed

Published

April 5, 2018

Last Modified

November 21, 2024

References (6)

ics-cert@hqhttp://www.securityfocus.com/bid/94163
ics-cert@hqhttps://ics-cert.us-cert.gov/advisories/ICSA-313-01
ics-cert@hqhttps://www.exploit-db.com/exploits/45590/
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94163
af854a3a-2127-422b-91ae-364da2661108https://ics-cert.us-cert.gov/advisories/ICSA-313-01
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/45590/

Data Freshness Timeline

(refreshed 11× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 09:32 UTCEG score recompute
2026-05-28 09:32 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 16:44 UTCepss_batch

Frequently asked(5)

What is CVE-2016-8371?

CVE-2016-8371 is a high vulnerability published on April 5, 2018. The web server in Phoenix Contact ILC PLCs can be accessed without authenticating even if the authentication mechanism is enabled.

When was CVE-2016-8371 disclosed?

CVE-2016-8371 was first published in the National Vulnerability Database on April 5, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2016-8371 actively exploited?

CVE-2016-8371 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2016-8371?

CVE-2016-8371 has a CVSS v3 base score of 7.3 (NVD).

How do I remediate CVE-2016-8371?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-8371, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2016-8371

📅 Published

🔄 Last Modified

🔗 References (6)