Is CVE-2026-82787 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-82787 being exploited in the wild.

How severe is CVE-2026-82787?

Critical severity, with a CVSS score of 9.8, published 14 September 2026.

Which products and versions are affected?

Contec CONPROSYS IO-Link Master CPSL-08P1EN prior to 2.3.10.

Is there a fix for CVE-2026-82787?

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-2026-82787 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-82787?

Check whether you run Contec CONPROSYS IO-Link Master CPSL-08P1EN 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.

CVE-2026-82787: Contec CONPROSYS IO-Link Master missing authentication for critical function

CVE-2026-82787 · Severity: critical · CVSS 9.8 · Published 2026-09-14

The Contec CONPROSYS IO-Link Master (model CPSL-08P1EN) is an industrial device used to manage input/output data in manufacturing and automation environments. A missing authentication vulnerability allows remote attackers to execute REST API calls without logging in, potentially retrieving sensitive I/O values or controlling critical outputs without authorization.

Vendors: Contec.

Quick answers

Is CVE-2026-82787 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-82787 being exploited in the wild.
How severe is CVE-2026-82787?: Critical severity, with a CVSS score of 9.8, published 14 September 2026.
Which products and versions are affected?: Contec CONPROSYS IO-Link Master CPSL-08P1EN prior to 2.3.10.
Is there a fix for CVE-2026-82787?: 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-2026-82787 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-82787?: Check whether you run Contec CONPROSYS IO-Link Master CPSL-08P1EN 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

This is a missing authentication vulnerability (CWE-306) in the REST API of the CONPROSYS IO-Link Master CPSL-08P1EN versions prior to 2.3.10. The vulnerability allows unauthenticated network-based access to critical API endpoints that control and monitor industrial I/O operations. An attacker without credentials can interact with the REST API to read I/O values and manipulate output states, potentially disrupting industrial processes. The vulnerability requires no user interaction and is remotely exploitable over the network. Patches are available in version 2.3.10 and later.

Affected products

Contec CONPROSYS IO-Link Master CPSL-08P1EN prior to 2.3.10

Timeline

2026-09-14: disclosed
2026-09-10: advisory: JVNVU#96551518 published

References

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