CVE-2016-8371: phoenix contact phoenix contact ilc plcs DEPRECATED: Authentication Bypass Issues
CVSS: 7.5v2.0HighModified
Published 05-04-2018Last modified 16-09-2024
Vulnerability summary
CVE-2016-8371 is a high (CVSS 7.5) DEPRECATED: Authentication Bypass Issues vulnerability in phoenix contact phoenix contact ilc plcs. EPSS estimates a 10.85% chance of exploitation in the next 30 days, higher than 95.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v2.0 (NVD)EPSS score
10.85%
0%100%
Medium · -3.34 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database
Timeline
- 05-04-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
The web server in Phoenix Contact ILC PLCs can be accessed without authenticating even if the authentication mechanism is enabled.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.3Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
10.85%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
-3.34 pp
From 14.19% on 21-09-2026
21-09-202621-10-2026
EPSS score10.85%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundPhoenix Contact WebVisit 2985725 - Authentication Bypass
Maturity: poc
Weaknesses
CWE · root cause- CWE-592DEPRECATED: Authentication Bypass IssuesThis weakness has been deprecated because it covered redundant concepts already described in CWE-287.
- CWE-287Improper AuthenticationWhen an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected systems
Phoenix contact1 product
- phoenix contact ilc plcsAll ILC 1xx PLCs
Phoenixcontact1 product
2 vendors · 2 products
References
3 links- ics-cert.us-cert.gov/advisories/ICSA-313-01X Refsource MISCThird Party AdvisoryUS Government Resource