CVE-2026-9622CWE-191
CVE-2026-9622
published September 1, 2026
What it is
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.
The record
Technical detail
- CVSS
- 8.7 · NONE
- CVSS v4.0
- 8.7 · 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
- 0.00312 · 23.6th percentile
- Weakness
- CWE-191 · Integer Underflow (Wrap or Wraparound)
- Published
- 2026-09-01T18:17Z
References (1)
EPSS history
Timeline