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High severity7.5NVD Advisory· Published Dec 3, 2020· Updated Jun 17, 2026

CVE-2020-6111

CVE-2020-6111

Description

An exploitable denial-of-service vulnerability exists in the IPv4 functionality of Allen-Bradley MicroLogix 1100 Programmable Logic Controller Systems Series B FRN 16.000, Series B FRN 15.002, Series B FRN 15.000, Series B FRN 14.000, Series B FRN 13.000, Series B FRN 12.000, Series B FRN 11.000 and Series B FRN 10.000. A specially crafted packet can cause a major error, resulting in a denial of service. An attacker can send a malicious packet to trigger this vulnerability.

AI Insight

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

Affected products

10
  • Rockwellautomation/Micrologix 1100 B Firmware8 versions
    cpe:2.3:o:rockwellautomation:micrologix_1100_b_firmware:10.000:*:*:*:*:*:*:*+ 7 more
    • cpe:2.3:o:rockwellautomation:micrologix_1100_b_firmware:10.000:*:*:*:*:*:*:*
    • cpe:2.3:o:rockwellautomation:micrologix_1100_b_firmware:11.000:*:*:*:*:*:*:*
    • cpe:2.3:o:rockwellautomation:micrologix_1100_b_firmware:12.000:*:*:*:*:*:*:*
    • cpe:2.3:o:rockwellautomation:micrologix_1100_b_firmware:13.000:*:*:*:*:*:*:*
    • cpe:2.3:o:rockwellautomation:micrologix_1100_b_firmware:14.000:*:*:*:*:*:*:*
    • cpe:2.3:o:rockwellautomation:micrologix_1100_b_firmware:15.000:*:*:*:*:*:*:*
    • cpe:2.3:o:rockwellautomation:micrologix_1100_b_firmware:15.002:*:*:*:*:*:*:*
    • cpe:2.3:o:rockwellautomation:micrologix_1100_b_firmware:16.000:*:*:*:*:*:*:*
  • Allen-Bradley/MicroLogix 1100 Programmable Logic Controller Systemsdescription
  • Allen-Bradley/MicroLogix 1100 Programmable Logic Controller Systemsllm-create
    Range: Series B FRN 16.000, Series B FRN 15.002, Series B FRN 15.000, Series B FRN 14.000, Series B FRN 13.000, Series B FRN 12.000, Series B FRN 11.000, Series B FRN 10.000

Patches

Vulnerability mechanics

References

2

News mentions

0

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