CVE-2026-9624
RSLinx Classic® - Multiple Vulnerabilities
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 1, 2026
- Updated
- Sep 1, 2026
- Reserved
- May 26, 2026
Description
A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet can cause the RSLinx® Classic service to crash due to insufficient data length validation, requiring a restart of the service to recover.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | Rockwell |
Weaknesses
- CWE-191 Integer underflow (wrap or wraparound)
Affected Products
| Product | Versions |
|---|---|
RSLinx Classic®Rockwell Automation |
|
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.