High severity · published Sep 14, 2026
CVE-2026-82780
Unrestricted upload of file with dangerous type issue exists in CONPROSYS TM Series
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
Unrestricted upload of file with dangerous type issue exists in CONPROSYS TM Series. If a specially crafted file is uploaded by a remote authenticated attacker, an arbitrary command may be executed on 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)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CP
CPS-TM341G5MB-ADSC1-931 · Contec Co., Ltd
before 2.19 · source: vendor
CP
CPS-TM341GMB-ADSC1-931 · Contec Co., Ltd
before 2.19 · source: vendor
CP
CPS-TM341MB-ADSC1-931 · Contec Co., Ltd
before 2.19 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82780
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82780
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 CPS-TM341G5MB-ADSC1-931
8.8
CVE-2026-82779
Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in CONPROSYS TM Series