{"cve":"CVE-2018-7838","nvd":{"published":"2019-07-15T21:15:10.477","modified":"2026-06-17T02:03:50.133","status":"Modified","description":"A CWE-119 Buffer Errors vulnerability exists in Modicon M580 CPU - BMEP582040, all versions before V2.90, and Modicon Ethernet Module BMENOC0301, all versions before V2.16, which could cause denial of service on the FTP service of the controller or the Ethernet BMENOC module when it receives a FTP CWD command with a data length greater than 1020 bytes. A power cycle is then needed to reactivate the FTP service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-119"],"references":["https://www.schneider-electric.com/ww/en/download/document/SEVD-2019-190-03","https://www.schneider-electric.com/ww/en/download/document/SEVD-2019-190-03"],"products":["schneider-electric:bmeh582040_firmware","schneider-electric:bmeh586040_firmware","schneider-electric:bmenoc0301_firmware","schneider-electric:modicon_m580_bmep581020_firmware","schneider-electric:modicon_m580_bmep582020_firmware","schneider-electric:modicon_m580_bmep582040_firmware","schneider-electric:modicon_m580_bmep582040s_firmware","schneider-electric:modicon_m580_bmep583020_firmware","schneider-electric:modicon_m580_bmep583040_firmware","schneider-electric:modicon_m580_bmep584020_firmware","schneider-electric:modicon_m580_bmep584040_firmware","schneider-electric:modicon_m580_bmep585040_firmware","schneider-electric:modicon_m580_bmep586040_firmware"],"source":"nvd","synced_at":"2026-10-19T20:58:11.797917892+00:00"},"epss":{"cve":"CVE-2018-7838","score":0.01116,"percentile":0.66069,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}