VULNERABILITY INTELLIGENCE
CVE-2018-7789
CVSS score7.5 HIGH
EPSS probability2.80%
CISA KEVNot currently listed
Published2018-08-29
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 Improper Check for Unusual or Exceptional Conditions vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to remotely reboot Modicon M221 using crafted programing protocol frames.
Weakness classification
- CWE-754: Improper Check for Unusual or Exceptional Conditions
Primary references
- cybersecurity@se.com — Third Party Advisory, VDB Entry
- cybersecurity@se.com — Mitigation, Third Party Advisory, US Government Resource
- cybersecurity@se.com — Mitigation, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Third Party Advisory, US Government Resource
- af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Vendor Advisory