VULNERABILITY INTELLIGENCE

CVE-2020-6111

CVSS score7.5 HIGH
EPSS probability5.56%
CISA KEVNot currently listed
Published2020-12-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • talos-cna@cisco.com: CWE-189
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references