Advisories › Rockwell Automation › ICSA-26-244-04

Rockwell Automation FactoryTalk Activation Manager: 1 CVE, High 7.8

High 7.8 Oil & gas relevant ICSA-26-244-04 · Published Sep 1, 2026

Summary

CISA reports 1 vulnerability in Rockwell Automation FactoryTalk Activation Manager. Weakness type: Improper Restriction of Excessive Authentication Attempts. Successful exploitation of this vulnerability could allow an authenticated attacker to obtain SYSTEM-level access, granting full control over all files, processes, and system resources. Highest CVSS v3 score: 7.8 (High), not remotely exploitable per its CVSS vector.

What to do: Prioritize: Rockwell Automation recommends users update to software version V5.03.
Why this matters for oil & gas: Rockwell Automation (ControlLogix, FactoryTalk, PlantPAx) is common on facilities and compressor stations; Affected products include FactoryTalk.

At a glance

Vendor
Rockwell Automation
Products
FactoryTalk Activation Manager
CVEs
CVE-2026-16675
Highest CVSS v3
7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Highest CVSS v4
–
Known exploited (KEV)
No CVE from this advisory is on the KEV list as of the last refresh
Sectors (per CISA)
Critical Manufacturing
Deployed
Worldwide
Vendor HQ
United States

Vulnerabilities

CVEWeaknessCVSS v3CVSS v4KEVDescription (from advisory)
CVE-2026-16675Improper Restriction of Excessive Authentication Attempts7.8–NoA privilege escalation vulnerability exists within FactoryTalk Activation Manager. The vulnerability stems from custom actions in the installer that spawn visible console windows running with SYSTEM privileges during installation or repair operations. An authenticated attacker with Windows credentials could hijack these console windows to obtain a SYSTEM-level command prompt, allowing full access …

Affected products (1)

Vendor fixes and mitigations (from advisory)

Also apply CISA's standard ICS practices: minimize network exposure, keep control networks behind firewalls and isolated from business networks, and use up-to-date secure remote access.

Sources

This page is generated automatically from the CISA advisory text. It is not a substitute for the vendor's guidance; verify affected versions and fixes at the source before making changes to control systems.

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