Medium severity5.8NVD Advisory· Published Jul 27, 2022· Updated Jun 17, 2026
CVE-2020-6998
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
18- cpe:2.3:o:rockwellautomation:armor_compact_guardlogix_5370_firmware:*:*:*:*:*:*:*:*Range: <=33
- cpe:2.3:o:rockwellautomation:compact_guardlogix_5370_firmware:*:*:*:*:*:*:*:*Range: <=33
- cpe:2.3:o:rockwellautomation:compactlogix_5370_l1_firmware:*:*:*:*:*:*:*:*Range: <=33
- cpe:2.3:o:rockwellautomation:compactlogix_5370_l2_firmware:*:*:*:*:*:*:*:*Range: <=33
- cpe:2.3:o:rockwellautomation:compactlogix_5370_l3_firmware:*:*:*:*:*:*:*:*Range: <=33
- cpe:2.3:o:rockwellautomation:controllogix_5570_firmware:*:*:*:*:*:*:*:*Range: <=33
- cpe:2.3:o:rockwellautomation:guardlogix_5560_firmware:*:*:*:*:*:*:*:*Range: <=33
- cpe:2.3:o:rockwellautomation:guardlogix_5570_firmware:*:*:*:*:*:*:*:*Range: <=33
- cpe:2.3:o:rockwellautomation:guardlogix_5580_firmware:*:*:*:*:*:*:*:*Range: <=33
- Range: <=33
- Range: <=33
unspecified+ 2 more
- (no CPE)range: unspecified
- (no CPE)range: unspecified
- (no CPE)range: unspecified
unspecified+ 2 more
- (no CPE)range: unspecified
- (no CPE)range: unspecified
- (no CPE)range: unspecified
- Range: unspecified
Patches
Vulnerability mechanics
References
2- rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1130398nvdPermissions RequiredVendor Advisory
- www.cisa.gov/uscert/ics/advisories/icsa-21-061-02nvdThird Party AdvisoryUS Government Resource
News mentions
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