medium severity August 20, 2026 · 1 min read

CISA ICS Advisory: Johnson Controls Simplex Incident Manager

Here’s what this advisory affects, and what to do about it.

Successful exploitation of this vulnerability could allow a local attacker with low privileges to extract user credentials (passwords and authentication tokens) from system memory, potentially leading to unauthorized access to the application and connected systems.

CISA ICS Advisory: Johnson Controls Simplex Incident Manager

CISA has published an ICS advisory on August 20, 2026 warning of a credential extraction vulnerability in Johnson Controls Simplex Incident Manager.

Local credential extraction from memory

The advisory states that successful exploitation of the vulnerability could allow a local attacker with low privileges to extract user credentials, including passwords and authentication tokens, directly from system memory. This could lead to unauthorized access to the Simplex Incident Manager application and any connected systems. The advisory does not say whether the flaw has been exploited in the wild.

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Affected products

The vulnerability affects specific versions of Johnson Controls Simplex Incident Manager. The advisory does not list exact version numbers or patch availability in the provided summary. No specific sectors or organizations are named beyond users of this industrial control system software.

What to do

Determine whether your organization uses Simplex Incident Manager in any operational environment.
Check current installed versions against the full details in the CISA advisory.
Apply any vendor-provided updates or patches as soon as they become available.
Review and implement the mitigations listed in the advisory for environments where immediate patching is not possible.
Monitor Johnson Controls’ official security channel for updated guidance on this issue.

Organizations operating industrial control systems should treat local privilege attacks on credential storage as a high operational concern, particularly where Simplex Incident Manager interacts with broader safety or security platforms.

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Sources: CISA ICS Advisory

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