HOMEVULNERABILITIESCVE-2016-5816
HIGH

CVE-2016-5816

CWE-798Published: August 25, 2017· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

A Use of Hard-Coded Cryptographic Key issue was discovered in MRD-305-DIN versions older than 1.7.5.0, and MRD-315, MRD-355, MRD-455 versions older than 1.7.5.0. The device utilizes hard-coded private cryptographic keys that may allow an attacker to decrypt traffic from any other source.

NVD Source

Technical Analysis

CVE-2016-5816 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 7.5.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

westermo8 product(s)
mrd-305-din firmwaremrd-305-dinmrd-315-din firmwaremrd-315-dinmrd-355-din firmwaremrd-355-dinmrd-455-din firmwaremrd-455-din
Source: NVD CPE · 8 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (2)

https://ics-cert.us-cert.gov/advisories/ICSA-17-236-01Third Party Advisory · US Government Resource
https://ics-cert.us-cert.gov/advisories/ICSA-17-236-01Third Party Advisory · US Government Resource

Quick Facts

CVE IDCVE-2016-5816
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-798
CISA KEVNo
Affected1 vendor(s)
PublishedAug 25, 2017

Related CVEs (CWE-798)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2016-5816 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.