Unrated severityNVD Advisory· Published Jul 27, 2022· Updated Apr 17, 2025

Rockwell Automation CompactLogix 5370 and ControlLogix 5570 Controllers Improper Input Validation

CVE-2020-6998

Description

The connection establishment algorithm found in Rockwell Automation CompactLogix 5370 and ControlLogix 5570 versions 33 and prior does not sufficiently manage its control flow during execution, creating an infinite loop. This may allow an attacker to send specially crafted CIP packet requests to a controller, which may cause denial-of-service conditions in communications with other products.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Rockwellautomation/CompactLogix 5370llm-create
Range: <=33
Rockwellautomation/Controllogixllm-create2 versions
<=33+ 1 more
- (no CPE)range: <=33
- (no CPE)range: unspecified
Rockwellautomation/Guardlogix Controllerscpe-rescue3 versions
unspecified+ 2 more
- (no CPE)range: unspecified
- (no CPE)range: unspecified
- (no CPE)range: unspecified
Rockwellautomation/Compactlogix Controllerscpe-rescue3 versions
unspecified+ 2 more
- (no CPE)range: unspecified
- (no CPE)range: unspecified
- (no CPE)range: unspecified

Patches

Vulnerability mechanics

References

rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1130398mitrex_refsource_CONFIRM
www.cisa.gov/uscert/ics/advisories/icsa-21-061-02mitrex_refsource_CONFIRM

News mentions

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