VULNERABILITY INTELLIGENCE

CVE-2018-7833

CVSS score7.5 HIGH
EPSS probability1.38%
CISA KEVNot currently listed
Published2018-12-17
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 where an unauthenticated user can send a specially crafted XML data via a POST request to cause the web server to become unavailable

Weakness classification

  • CWE-754: Improper Check for Unusual or Exceptional Conditions

Primary references