CriticalCISASep 01, 2026

Rockwell Automation Historian ME

View CSAF Summary Successful exploitation of these vulnerabilities could crash the device being accessed; an out-of-bounds write condition may allow remote code execution. The following versions of Rockwell Automation Historian ME are affected: Series B 5.202 (CVE-2025-12768, CVE-2026-12661) Series C 7.101 (CVE-2025-12768, CVE-2026-12661) CVSS Vendor Equipment Vulnerabilities v3 8 Rockwell Automation Rockwell Automation Historian ME Out-of-bounds Write, Stack-based Buffer Overflow Background Critical Infrastructure Sectors: Chemical, Critical Manufacturing, Food and Agriculture, Healthcare and Public Health, Water and Wastewater Systems Countries/Areas Deployed: Worldwide Company Headquarter

Why it matters

The weakness can enable direct compromise with limited attacker prerequisites, making internet-facing assets the first place to look.

What defenders should do

Identify affected versions, prioritize internet-facing systems, and apply the vendor remediation.

Verify at the source

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