High severity7.5NVD Advisory· Published Aug 29, 2018· Updated Jun 17, 2026
CVE-2018-7789
CVE-2018-7789
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:*range: <1.6.2.0
- (no CPE)range: <1.6.2.0
- Schneider Electric SE/Modicon M221, all references, all versions prior to firmware V1.6.2.0v5Range: Modicon M221, all references, all versions prior to firmware V1.6.2.0
Patches
Vulnerability mechanics
References
3- www.securityfocus.com/bid/105171nvdThird Party AdvisoryVDB Entry
- ics-cert.us-cert.gov/advisories/ICSA-18-240-02nvdMitigationThird Party AdvisoryUS Government Resource
- www.schneider-electric.com/en/download/document/SEVD-2018-233-01/nvdMitigationVendor Advisory
News mentions
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