HOMEVULNERABILITIESCVE-2018-5471
MEDIUM

CVE-2018-5471

CWE-319Published: March 6, 2018· Updated: Jun 17, 2026

5.9
CVSS v3.1

Official Description

A Cleartext Transmission of Sensitive Information issue was discovered in Belden Hirschmann RS, RSR, RSB, MACH100, MACH1000, MACH4000, MS, and OCTOPUS Classic Platform Switches. A cleartext transmission of sensitive information vulnerability in the web interface has been identified, which may allow an attacker to obtain sensitive information through a successful man-in-the-middle attack.

NVD Source

Technical Analysis

CVE-2018-5471 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 successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.9.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

belden134 product(s)
hirschmann rs20-0900mmm2tdauhirschmann rs20-0900nnm4tdauhirschmann rs20-0900vvm2tdauhirschmann rs20-1600l2l2sdauhirschmann rs20-1600l2m2sdauhirschmann rs20-1600l2s2sdauhirschmann rs20-1600l2t1sdauhirschmann rs20-1600m2m2sdauhirschmann rs20-1600m2t1sdauhirschmann rs20-1600s2m2sdauhirschmann rs20-1600s2s2sdauhirschmann rs20-1600s2t1sdau+122
Source: NVD CPE · 134 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/103340
ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-18-065-01
ADVISORYhttp://www.securityfocus.com/bid/103340
ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-18-065-01

All References (4)

→
http://www.securityfocus.com/bid/103340Third Party Advisory · VDB Entry
→
https://ics-cert.us-cert.gov/advisories/ICSA-18-065-01Mitigation · Third Party Advisory · US Government Resource
→
http://www.securityfocus.com/bid/103340Third Party Advisory · VDB Entry
→
https://ics-cert.us-cert.gov/advisories/ICSA-18-065-01Mitigation · Third Party Advisory · US Government Resource

Quick Facts

CVE IDCVE-2018-5471
CVSS Score5.9 / 10
SeverityMEDIUM
WeaknessCWE-319
CISA KEVNo
Affected1 vendor(s)
PublishedMar 6, 2018

Related CVEs (CWE-319)

CVE-2025-47419
10.0
CVE-2025-4378
10.0
CVE-2023-33730
9.8
CVE-2023-32328
9.8
CVE-2022-46680
9.8
CVE-2023-39245
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-5471 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.
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