Medium severity · published Sep 14, 2026
CVE-2026-82775
An exposure of information through directory listing issue exists in CONPROSYS M2M Gateway Series and CONPROSYS M2M Controller Series
4.3
CVSS
0.4%
EPSS
No
On KEV
Description
An exposure of information through directory listing issue exists in CONPROSYS M2M Gateway Series and CONPROSYS M2M Controller Series. Accessing a specific URL on this product may allow a remote unauthenticated attacker to obtain the directory list without authentication.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% 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-2026-82775
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82775
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
More from M2M Controller Configurable type CPS-MCS341*
8.8
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
6.1
CVE-2026-82773
Cross-site scripting vulnerability exists in CONPROSYS M2M Gateway Series and CONPROSYS M2M Controller Series