Quick answers
- Is CVE-2026-82785 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-82785 being exploited in the wild.
- How severe is CVE-2026-82785?
- Medium severity, with a CVSS score of 4.3, published 14 September 2026.
- Which products and versions are affected?
- Contec CONPROSYS nano Remote I/O Coupler Unit (Server Type) CPSN-MCB271 prior to 1.82.
- Is there a fix for CVE-2026-82785?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-82785 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-82785?
- Check whether you run Contec CONPROSYS nano Remote I/O Coupler Unit (Server Type) CPSN-MCB271 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A stack-based buffer overflow vulnerability (CWE-121) exists in the Remote I/O Coupler Unit (Server Type) CPSN-MCB271-* when processing specially crafted network requests. The vulnerability is triggered by a remote attacker sending malformed input without requiring authentication. Exploitation of this flaw causes a denial-of-service condition that interrupts the device's operation. The vulnerability affects versions prior to 1.82, and a patch is available in version 1.82 and later.
Affected products
- Contec CONPROSYS nano Remote I/O Coupler Unit (Server Type) CPSN-MCB271 prior to 1.82
Timeline
- 2026-09-14: disclosed: CVE-2026-82785 published on NVD