CVE-2018-5461

An Inadequate Encryption Strength issue was discovered in Belden Hirschmann RS, RSR, RSB, MACH100...

6.5 Medium

An Inadequate Encryption Strength issue was discovered in Belden Hirschmann RS, RSR, RSB, MACH100, MACH1000, MACH4000, MS, and OCTOPUS Classic Platform Switches. An inadequate encryption strength 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: Low
Availability: None

Exploit likelihood

0.45%Down 0.2 points since Apr 14, 2021

What each source reports

NVD Score used 6.5

Record: CVE-2018-5461
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
CVSS 2.0: 5.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:N
Weakness: CWE-326
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-5461
Weakness: CWE-326
Updated: 2026-11-02

EUVDEUVD-2018-17231 No score

Record: EUVD-2018-17231
Updated: 2026-11-03

GitHub AdvisoriesGHSA-rv4v-xm8j-qccg 6.5

An Inadequate Encryption Strength issue was discovered in Belden Hirschmann RS, RSR, RSB, MACH100...

Record: GHSA-rv4v-xm8j-qccg
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Weakness: CWE-326
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-2018-5461 is a medium vulnerability (CVSS 6.5) 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 0.45%, the 38th percentile. No source names a fixed version.