{"cve":"CVE-2019-6820","nvd":{"published":"2019-05-22T20:29:02.137","modified":"2026-06-17T02:39:44.260","status":"Modified","description":"A CWE-306: Missing Authentication for Critical Function vulnerability exists which could cause a modification of device IP configuration (IP address, network mask and gateway IP address) when a specific Ethernet frame is received in all versions of: Modicon M100, Modicon M200, Modicon M221, ATV IMC drive controller, Modicon M241, Modicon M251, Modicon M258, Modicon LMC058, Modicon LMC078, PacDrive Eco ,PacDrive Pro, PacDrive Pro2","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:L/A:H","score":8.2},"cwes":["CWE-306"],"references":["https://www.schneider-electric.com/en/download/document/SEVD-2019-134-02/","https://www.schneider-electric.com/en/download/document/SEVD-2019-134-02/"],"products":["schneider-electric:atv_imc_drive_controller_firmware","schneider-electric:modicon_lmc058_firmware","schneider-electric:modicon_lmc078_firmware","schneider-electric:modicon_m100_firmware","schneider-electric:modicon_m200_firmware","schneider-electric:modicon_m221_firmware","schneider-electric:modicon_m241_firmware","schneider-electric:modicon_m251_firmware","schneider-electric:modicon_m258_firmware","schneider-electric:pacdrive_eco_firmware","schneider-electric:pacdrive_pro2_firmware","schneider-electric:pacdrive_pro_firmware"],"source":"nvd","synced_at":"2026-10-19T20:56:19.218283075+00:00"},"epss":{"cve":"CVE-2019-6820","score":0.01275,"percentile":0.69928,"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."]}