{"id":"CVE-2020-35557","aliases":["EUVD-2020-23224","GHSA-4jrw-3q8x-9gpf"],"status":"published","title":"Improper Access Validation in products of MB connect line and Helmholz","description":"An issue in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2 allows a logged in user to see devices in the account he should not have access to due to improper use of access validation.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01005,"percentile":0.63224,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200","CWE-269"],"published":"2021-02-16T15:16:06Z","modified":"2026-06-17T03:13:54Z","products":[{"vendor":"helmholz","product":"myrex24"},{"vendor":"helmholz","product":"myrex24.virtual"},{"vendor":"mbconnectline","product":"mbconnect24"},{"vendor":"mbconnectline","product":"mymbconnect24"}],"references":[{"url":"https://mbconnectline.com/security-advice/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://cert.vde.com/en/advisories/VDE-2021-003","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://cert.vde.com/en/advisories/VDE-2022-039","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-35557"},{"url":"https://cert.vde.com/de-de/advisories/vde-2021-003"},{"url":"https://github.com/advisories/GHSA-4jrw-3q8x-9gpf"}],"sources":{"cve":[{"id":"CVE-2020-35557","title":"Improper Access Validation in products of MB connect line and Helmholz","description":"An issue in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2 allows a logged in user to see devices in the account he should not have access to due to improper use of access validation.","status":"published","published":"2021-02-16T15:16:06.296Z","modified":"2024-09-16T17:42:40.485Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:57.975444Z"}],"euvd":[{"id":"EUVD-2020-23224","description":"An issue in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2 allows a logged in user to see devices in the account he should not have access to due to improper use of access validation.","status":"published","published":"2021-02-16T15:16:06Z","modified":"2024-09-16T17:42:40Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:55:39.660997Z"}],"ghsa":[{"id":"GHSA-4jrw-3q8x-9gpf","title":"An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 software in all versions...","description":"An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 software in all versions through 2.6.2. Inproper use of access validation allows a logged in user to see devices in the account he should not have access to.","status":"published","published":"2022-05-24T17:42:18Z","modified":"2023-02-01T05:08:25Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200","CWE-269"],"updated_at":"2026-11-02T14:50:45.608979Z"}],"nvd":[{"id":"CVE-2020-35557","description":"An issue in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2 allows a logged in user to see devices in the account he should not have access to due to improper use of access validation.","status":"published","published":"2021-02-16T16:15:13.05Z","modified":"2026-06-17T03:13:54.953Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:06:34.188486Z"}]}}