CVE-2026-82786 Information disclosure in Remote I/O Coupler Unit (Server Type) CPSN-MCB271-*
Attackers can restore sensitive credentials from backup files in Contec Remote I/O Coupler Units, exposing system secrets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-82786?
CVE-2026-82786 is a high-severity vulnerability in Contec Co., Ltd. Remote I/O Coupler Unit (Server Type) CPSN-MCB271-*, published on 14 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Insufficiently protected credentials issue exists in Remote I/O Coupler Unit (Server Type) CPSN-MCB271-*. If this vulnerability is exploited, sensitive information may be restored from a backup file.
Weakness: CWE-522
Which versions are affected by CVE-2026-82786?
How do I fix CVE-2026-82786?
No fix has been published for CVE-2026-82786 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-82786 being exploited?
There is no known exploitation of CVE-2026-82786 in the wild and no public exploit code.
Sources
Also known as GHSA-622w-5wv2-xm5f.