A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet targeting the Forward Close service can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover.
History

Tue, 01 Sep 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Rockwellautomation
Rockwellautomation rslinx Classic
Vendors & Products Rockwellautomation
Rockwellautomation rslinx Classic

Tue, 01 Sep 2026 13:45:00 +0000

Type Values Removed Values Added
Description A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet targeting the Forward Close service can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover.
Title RSLinx Classic® - Multiple Vulnerabilities
First Time appeared Rockwell Automation
Rockwell Automation rslinx Classic
Weaknesses CWE-191
CPEs cpe:2.3:a:rockwell_automation:rslinx_classic_:v4.50_and_prior:*:*:*:*:*:*:*
Vendors & Products Rockwell Automation
Rockwell Automation rslinx Classic
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Rockwell

Published:

Updated: 2026-09-01T15:46:32.081Z

Reserved: 2026-05-26T17:18:22.609Z

Link: CVE-2026-9622

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-01T14:17:49.510

Modified: 2026-09-01T16:17:38.390

Link: CVE-2026-9622

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-01T14:45:03Z