CVE-2026-82782 Memory corruption in Programmable Remote I/O Coupler Unit (Software PLC Type) CPSN-PCB271-S1-041
A remote attacker can cause a denial-of-service condition in CONPROSYS nano Series units by sending a specially crafted request.
- 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-2026-82782?
CVE-2026-82782 is a medium-severity memory corruption vulnerability in Contec Co., Ltd. Programmable Remote I/O Coupler Unit (Software PLC Type) CPSN-PCB271-S1-041, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Out-of-bounds write vulnerability exists in CONPROSYS nano Series. Receiving a specially crafted request created and sent by a remote attacker may cause a denial-of-service (DoS) condition.
Weakness: CWE-787
Which versions are affected by CVE-2026-82782?
How do I fix CVE-2026-82782?
No fix has been published for CVE-2026-82782 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-82782 being exploited?
There is no known exploitation of CVE-2026-82782 in the wild and no public exploit code.
Sources
Also known as GHSA-5h5q-r46r-p7qx.