CVE-2026-82775 Information disclosure in M2M Controller Configurable type CPS-MCS341*
Remote unauthenticated attackers can access directory listings via specific URLs, exposing sensitive file structure information in CONPROSYS M2M devices.
- 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-2026-82775?
CVE-2026-82775 is a medium-severity vulnerability in Contec Co., Ltd. M2M Controller Configurable type CPS-MCS341*, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-548
Which versions are affected by CVE-2026-82775?
How do I fix CVE-2026-82775?
No fix has been published for CVE-2026-82775 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-82775 being exploited?
There is no known exploitation of CVE-2026-82775 in the wild and no public exploit code.
Sources
Also known as GHSA-fh58-255m-v4qj.