{"id":"CVE-2021-34575","aliases":["EUVD-2021-21225","GHSA-643m-j2p7-phvx"],"status":"published","title":"Information Exposure in mymbCONNECT24, mbCONNECT24 \u003c= 2.8.0","description":"In MB connect line mymbCONNECT24, mbCONNECT24 in versions \u003c= 2.8.0 an unauthenticated user can enumerate valid users by checking what kind of response the server sends.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0103,"percentile":0.63992,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-203"],"published":"2021-08-02T10:24:32Z","modified":"2026-06-17T03:56:09Z","products":[{"vendor":"mb connect line","product":"mbconnect24"},{"vendor":"mb connect line","product":"mymbconnect24"},{"vendor":"mbconnectline","product":"mbconnect24"},{"vendor":"mbconnectline","product":"mymbconnect24"}],"references":[{"url":"https://cert.vde.com/de-de/advisories/vde-2021-030","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34575"},{"url":"https://github.com/advisories/GHSA-643m-j2p7-phvx"}],"sources":{"cve":[{"id":"CVE-2021-34575","title":"Information Exposure in mymbCONNECT24, mbCONNECT24 \u003c= 2.8.0","description":"In MB connect line mymbCONNECT24, mbCONNECT24 in versions \u003c= 2.8.0 an unauthenticated user can enumerate valid users by checking what kind of response the server sends.","status":"published","published":"2021-08-02T10:24:32.82Z","modified":"2024-09-16T22:46:43.672Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-21225","description":"In MB connect line mymbCONNECT24, mbCONNECT24 in versions \u003c= 2.8.0 an unauthenticated user can enumerate valid users by checking what kind of response the server sends.","status":"published","published":"2021-08-02T10:24:32Z","modified":"2024-09-16T22:46:43Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-03T00:54:59.7394Z"}],"ghsa":[{"id":"GHSA-643m-j2p7-phvx","title":"In MB connect line mymbCONNECT24, mbCONNECT24 in versions \u003c= 2.8.0 an unauthenticated user can...","description":"In MB connect line mymbCONNECT24, mbCONNECT24 in versions \u003c= 2.8.0 an unauthenticated user can enumerate valid users by checking what kind of response the server sends.","status":"published","published":"2022-05-24T19:09:36Z","modified":"2023-01-30T05:01:11Z","cwes":["CWE-203"],"updated_at":"2026-11-02T14:46:21.550142Z"}],"nvd":[{"id":"CVE-2021-34575","description":"In MB connect line mymbCONNECT24, mbCONNECT24 in versions \u003c= 2.8.0 an unauthenticated user can enumerate valid users by checking what kind of response the server sends.","status":"published","published":"2021-08-02T11:15:11.417Z","modified":"2026-06-17T03:56:09.49Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:06:56.562207Z"}]}}