CVE-2020-6983

HIGH
7.5
CVSS Score
Published: March 24, 2020 at 06:57 PM UTC
Updated: June 17, 2026 at 03:24 AM UTC
112 products affected across 1 vendorPt 7528-8msc 16TX 4GSFP Wv FirmwarePt 7828-r 48-48 FirmwarePt 7528-8mst 16TX 4GSFP Hv Hv Firmware

Using Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower by N/A?

Get instant alerts when new vulnerabilities affect Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

In Moxa PT-7528 series firmware, Version 4.0 or lower, and PT-7828 series firmware, Version 3.9 or lower, the affected products use a hard-coded cryptographic key, which increases the possibility that confidential data can be recovered.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 4.0
moxa-pt-7528-12msc-12tx-4gsfp-hv (same device)
v ≤ 4.0
moxa-pt-7528-12msc-12tx-4gsfp-hv-hv (same device)
v ≤ 4.0
moxa-pt-7528-12msc-12tx-4gsfp-wv (same device)
v ≤ 4.0
moxa-pt-7528-12msc-12tx-4gsfp-wv-wv (same device)
v ≤ 4.0
moxa-pt-7528-12mst-12tx-4gsfp-hv (same device)
v ≤ 4.0
moxa-pt-7528-12mst-12tx-4gsfp-hv-hv (same device)
v ≤ 4.0
moxa-pt-7528-12mst-12tx-4gsfp-wv (same device)
v ≤ 4.0
moxa-pt-7528-12mst-12tx-4gsfp-wv-wv (same device)
v ≤ 4.0
moxa-pt-7528-16msc-8tx-4gsfp-hv (same device)
v ≤ 4.0
moxa-pt-7528-16msc-8tx-4gsfp-hv-hv (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party AdvisoryUS Government Resource
https://www.us-cert.gov/ics/advisories/icsa-20-056-03

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-321CWE-798

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card