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CVE-2026-9637 is a high-severity denial-of-service vulnerability in Rockwell Automation CompactLogix 5380 and ControlLogix 5580 Logix platforms. CIP message processing improperly validates input length values. A malformed CIP message can cause the controller to enter a major nonrecoverable fault (MNRF), from which recovery requires a power cycle.
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A high-severity denial-of-service vulnerability affecting Rockwell Automation ControlLogix and CompactLogix controllers.
A denial-of-service vulnerability in affected Logix platforms caused by improper input-length validation during Common Industrial Protocol (CIP) message processing. Successful triggering can place the device into a major nonrecoverable fault, requiring a power cycle for recovery.
A remotely exploitable denial-of-service vulnerability in Rockwell Automation CompactLogix 5380 and ControlLogix 5580 platforms. Improper input-length validation while processing CIP messages can trigger a major nonrecoverable fault (MNRF), requiring a power cycle.
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Cross-references every affected SKU, including bundled OEM variants.
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