VULNERABILITY INTELLIGENCE
CVE-2026-9621
EPSS probability0.43%
CISA KEVNot currently listed
Published2026-09-01
Last modified2026-09-01
Description
A denial-of-service security issue exists within RSLinx® Classic. The security issue stems from improper handling of a malformed packet. A crafted CIP packet can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover
Weakness classification
- PSIRT@rockwellautomation.com: CWE-190