HOMEVULNERABILITIESCVE-2016-8380
HIGHPOC

CVE-2016-8380

CWE-767Published: April 5, 2018· Updated: Jun 17, 2026

7.3
CVSS v3.1

Official Description

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

NVD Source

Technical Analysis

CVE-2016-8380 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A proof-of-concept (PoC) exploit exists for CVE-2016-8380. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityLow
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected Vendors & Products

phoenixcontact2 product(s)
ilc plcs firmwareilc plcs
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (6)

http://www.securityfocus.com/bid/94163Third Party Advisory · VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-313-01Third Party Advisory · US Government Resource
http://www.securityfocus.com/bid/94163Third Party Advisory · VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-313-01Third Party Advisory · US Government Resource

Quick Facts

CVE IDCVE-2016-8380
CVSS Score7.3 / 10
SeverityHIGH
WeaknessCWE-767
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedApr 5, 2018

Related CVEs (CWE-767)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2016-8380 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.