TI-2026-10837 Aliases CVE-2026-12661 GHSA-h4cr-jvp7-9897

FactoryTalk® Historian Machine Edition - Out-of-Bounds Write Vulnerability

LOW 22CWE-121Published 2026-09-01 · Updated 2026-09-02

Key facts

Attack vector: Adjacent network
Privileges required: High
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · None · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0023 13th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Rockwell	FactoryTalk® Historian Machine Edition	Series C: 7.101 Series B: 5.202	—	No fix listed	CNA

FactoryTalk® Historian Machine Edition VendorRockwell Affected Series C: 7.101 Series B: 5.202 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-12661
2026-10-03 Alias added: GHSA-h4cr-jvp7-9897

References

Other 1

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1796.html

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TI-2010-02837 The WDB target agent debug service in Wind River VxWorks 6.x, 5.x, and earlier, as used… CVSS 3.1CRITICAL 9.8
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See all 434 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences