{"cve":"CVE-2020-7564","nvd":{"published":"2020-11-18T14:15:13.363","modified":"2026-06-17T03:25:01.193","status":"Modified","description":"A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists in the Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause write access and the execution of commands when uploading a specially crafted file on the controller over FTP.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-120"],"references":["https://www.se.com/ww/en/download/document/SEVD-2020-315-01/","https://www.se.com/ww/en/download/document/SEVD-2020-315-01/"],"products":["schneider-electric:modicon_m340_bmx_noc_0401_firmware","schneider-electric:modicon_m340_bmx_noe_0100_firmware","schneider-electric:modicon_m340_bmx_noe_0100h_firmware","schneider-electric:modicon_m340_bmx_noe_0110_firmware","schneider-electric:modicon_m340_bmx_noe_0110h_firmware","schneider-electric:modicon_m340_bmx_nor_0200h_firmware","schneider-electric:modicon_m340_bmx_p34-2010_firmware","schneider-electric:modicon_m340_bmx_p34-2030_firmware","schneider-electric:modicon_quantum_140cpu65150_firmware","schneider-electric:modicon_quantum_140cpu65150c_firmware","schneider-electric:modicon_quantum_140cpu65160_firmware","schneider-electric:modicon_quantum_140cpu65160c_firmware","schneider-electric:modicon_quantum_140noc78100_firmware","schneider-electric:modicon_quantum_140noe77101_firmware","schneider-electric:modicon_quantum_140noe77111_firmware","schneider-electric:modicon_tsxety4103_firmware","schneider-electric:modicon_tsxety5103_firmware","schneider-electric:modicon_tsxp574634_firmware","schneider-electric:modicon_tsxp575634_firmware","schneider-electric:modicon_tsxp576634_firmware"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-7564","score":0.01176,"percentile":0.67583,"date":"2026-11-01"},"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."]}