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Medium 4.8Published Sep 1, 2026

CVE-2026-12661FactoryTalk® Historian Machine Edition - Out-of-Bounds Write Vulnerability

Updated under an hour ago ()

Does this affect you?

It affects Rockwell Automation FactoryTalk® Historian Machine Edition. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

A denial-of-service security issue exists within FactoryTalk® Historian Machine Edition.  A network adjacent attacker who is authenticated could send crafted requests to the web interface, resulting in buffer overflow conditions that may cause the device to crash and become unresponsive.

CVSS
4.8 MEDIUM (v4.0, CNA)CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-121
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Rockwell
NVD analysis
Awaiting Analysis
Record last updated
Sep 2, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Rockwell Automation FactoryTalk® Historian Machine Edition
rockwell_automation:factorytalk_historian_machine_edition (from the name)
Series C: 7.101 Series B: 5.202
CNA record

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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