CVE-2026-45451: Unitronics UniStream Pro and UniLogic improper authentication

CVE-2026-45451 · Severity: high · CVSS 8.3 · Published 2026-10-15

Unitronics UniStream Pro and UniLogic are industrial automation controllers used to control manufacturing and critical infrastructure systems. An improper authentication vulnerability allows attackers to bypass access controls, potentially gaining unauthorized control over connected machinery and processes without proper credentials.

Technologies: Unitronics UniLogic, Unitronics UniStream Pro. Vendors: Unitronics.

Quick answers

Is CVE-2026-45451 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-45451 being exploited in the wild.
How severe is CVE-2026-45451?
High severity, with a CVSS score of 8.3, published 15 October 2026.
Which products and versions are affected?
Unitronics UniLogic prior to 1.41.329; Unitronics UniStream Pro B10, C10.
Is there a fix for CVE-2026-45451?
Yes: fixed in UniLogic 1.41.329. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-45451 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-45451?
Check whether you run Unitronics UniLogic or Unitronics UniStream Pro 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.

How to fix

  • Fixed in: UniLogic 1.41.329

Technical details

An improper authentication vulnerability in Unitronics UniStream Pro and UniLogic allows attackers to bypass authentication mechanisms. The vulnerability affects UniStream Pro versions B10 and C10, and UniLogic versions prior to 1.41.329. A network-based attacker can exploit this to gain unauthorized access to the controller.

Affected products

  • Unitronics UniStream Pro B10, C10
  • Unitronics UniLogic prior to 1.41.329

Timeline

  • 2026-10-15: disclosed

References

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