CVE-2023-27389

HIGH
7.2
CVSS Score
Published: April 11, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:44 AM UTC
39 products affected across 1 vendorCps Mc341-adsc1 111 FirmwareCps Mcs341-ds1-131 FirmwareCps Mcs341-ds1-111 Firmware

Using CONPROSYS IoT Gateway products by Contec CO.,LTD.?

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Severity
HIGH7.2
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Inadequate encryption strength vulnerability in CONPROSYS IoT Gateway products allows a remote authenticated attacker with an administrative privilege to apply a specially crafted Firmware update file, alter the information, cause a denial-of-service (DoS) condition, and/or execute arbitrary code. The affected products and versions are as follows: M2M Gateway with the firmware Ver.3.7.10 and earlier (CPS-MG341-ADSC1-111, CPS-MG341-ADSC1-931, CPS-MG341G-ADSC1-111, CPS-MG341G-ADSC1-930, and CPS-MG341G5-ADSC1-931), M2M Controller Integrated Type with firmware Ver.3.7.6 and earlier versions (CPS-MC341-ADSC1-111, CPS-MC341-ADSC1-931, CPS-MC341-ADSC2-111, CPS-MC341G-ADSC1-110, CPS-MC341Q-ADSC1-111, CPS-MC341-DS1-111, CPS-MC341-DS11-111, CPS-MC341-DS2-911, and CPS-MC341-A1-111), and M2M Controller Configurable Type with firmware Ver.3.8.8 and earlier versions (CPS-MCS341-DS1-111, CPS-MCS341-DS1-131, CPS-MCS341G-DS1-130, CPS-MCS341G5-DS1-130, and CPS-MCS341Q-DS1-131).

Affected

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

v ≤ 3.7.6
contec-cps-mc341-a1-111 (same device)
v ≤ 3.7.6
contec-cps-mc341-adsc1-111 (same device)
v ≤ 3.7.6
contec-cps-mc341-adsc1-931 (same device)
v ≤ 3.7.6
contec-cps-mc341-adsc2-111 (same device)
v ≤ 3.7.6
contec-cps-mc341-ds1-111 (same device)
v ≤ 3.7.6
contec-cps-mc341-ds11-111 (same device)
v ≤ 3.7.6
contec-cps-mc341-ds2-911 (same device)
v ≤ 3.7.6
contec-cps-mc341g-adsc1-110 (same device)
v ≤ 3.7.6
contec-cps-mc341q-adsc1-111 (same device)
v ≤ 3.8.8
contec-cps-mcs341-ds1-111 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.2HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-326

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