CVE-2026-9622
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.7
- CVSS 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
- EPSS probability
- 0.31%
- CWE
- CWE-191
- Published
- 2026-09-01
- Last modified
- 2026-09-01
Affected products
- Rockwell Automation RSLinx Classic®
Weakness type
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