{"cve":"CVE-2020-28220","nvd":{"published":"2020-12-11T01:15:11.940","modified":"2026-06-17T03:10:13.590","status":"Modified","description":"A CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in Modicon M258 Firmware (All versions prior to V5.0.4.11) and SoMachine/SoMachine Motion software (All versions), that could cause a buffer overflow when the length of a file transferred to the webserver is not verified.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":6.8},"cwes":["CWE-119"],"references":["https://www.se.com/ww/en/download/document/SEVD-2020-343-09/","https://www.se.com/ww/en/download/document/SEVD-2020-343-09/"],"products":["schneider-electric:modicon_m258_firmware","schneider-electric:somachine","schneider-electric:somachine_motion"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-28220","score":0.01084,"percentile":0.65232,"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."]}