CVE-2018-5471

A Cleartext Transmission of Sensitive Information issue was discovered in Belden Hirschmann RS,...

5.9 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.97%Up 0.3 points since Apr 14, 2021

What each source reports

NVD Score used 5.9

Record: CVE-2018-5471
CVSS 3.0: 5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness: CWE-319
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-5471
Weakness: CWE-319
Updated: 2026-11-02

EUVDEUVD-2018-17241 No score

Record: EUVD-2018-17241
Updated: 2026-11-03

GitHub AdvisoriesGHSA-v22v-4gfh-3m25 5.9

A Cleartext Transmission of Sensitive Information issue was discovered in Belden Hirschmann RS,...

Record: GHSA-v22v-4gfh-3m25
CVSS 3.0: 5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-319
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-5471 is a medium vulnerability (CVSS 5.9) in Belden Hirschmann M1-8mm-sc, published March 6, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.97%, the 61st percentile. No source names a fixed version.