PT-2026-84230 · Rockwell Automation · Rslinx Classic
CVE-2026-9621
·
Published
2026-09-01
·
Updated
2026-09-01
CVSS v4.0
9.2
Critical
| Vector | AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H |
Name of the Vulnerable Software and Affected Versions
RSLinx® Classic (affected versions not specified)
Description
A denial-of-service issue occurs due to the improper handling of malformed packets. An attacker can send a crafted CIP (Common Industrial Protocol) packet, which causes the RSLinx® Classic service to crash, necessitating a service restart for recovery.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
DoS
Integer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Rslinx Classic