High severity · published Sep 14, 2026
CVE-2026-82774
Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in CONPROSYS M2M Gateway Series and CONPROSYS M2M Controller Series
8.8
CVSS
1.9%
EPSS
No
On KEV
Description
Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in CONPROSYS M2M Gateway Series and CONPROSYS M2M Controller Series. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to the product.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MC
M2M Controller Configurable type CPS-MCS341* · Contec Co., Ltd.
before 4.1.0 · source: vendor
MC
M2M Controller Integrated Type CPS-MC341 · Contec Co., Ltd.
before 4.1.0 · source: vendor
MG
M2M Gateway Configurable type CPS-MGS341* · Contec Co., Ltd.
before 4.1.0 · source: vendor
MG
M2M Gateway Integrated Type CPS-MG341* · Contec Co., Ltd.
before 4.1.0 · source: vendor
Affected product
MC
M2M Controller Configurable type CPS-MCS341*
Contec Co., Ltd.
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82774
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82774
jvn.jp
https://jvn.jp/en/vu/JVNVU96551518/
www.contec.com
https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_cps_26091000_en.pdf
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