CVE-2026-82780 File upload in CPS-TM341G5MB-ADSC1-931

High 8.7 Published Updated

Remote authenticated attackers can upload malicious files to CONPROSYS TM Series devices to execute arbitrary commands.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-82780?

CVE-2026-82780 is a high-severity vulnerability in Contec Co., Ltd CPS-TM341G5MB-ADSC1-931, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-434

Which versions are affected by CVE-2026-82780?

How do I fix CVE-2026-82780?

No fix has been published for CVE-2026-82780 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-82780 being exploited?

There is no known exploitation of CVE-2026-82780 in the wild and no public exploit code.

Sources

Also known as GHSA-5m6w-fc43-6xv8.

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