CVE-2026-9621 — RSLinx Classic® - Multiple Vulnerabilities
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 RSLin…
Published: 2026-09-01 · CVSS: 9.2 · CVSS 4.0
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
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7