{"id":"CVE-2021-33527","aliases":["EUVD-2021-20219","GHSA-hrmp-939q-g4mq"],"status":"published","title":"OS Command Injection in mbDIALUP \u003c= 3.9R0.0","description":"In MB connect line mbDIALUP versions \u003c= 3.9R0.0 a remote attacker can send a specifically crafted HTTP request to the service running with NT AUTHORITY\\SYSTEM that will not correctly validate the input. This can lead to an arbitrary code execution with the privileges of the service.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.04524,"percentile":0.91656,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-269"],"published":"2021-08-02T10:24:31Z","modified":"2026-06-17T03:54:43Z","products":[{"vendor":"mb connect line","product":"mbdialup"},{"vendor":"mbconnectline","product":"mbdialup"}],"references":[{"url":"https://cert.vde.com/de-de/advisories/vde-2021-017","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33527"},{"url":"https://github.com/advisories/GHSA-hrmp-939q-g4mq"}],"sources":{"cve":[{"id":"CVE-2021-33527","title":"OS Command Injection in mbDIALUP \u003c= 3.9R0.0","description":"In MB connect line mbDIALUP versions \u003c= 3.9R0.0 a remote attacker can send a specifically crafted HTTP request to the service running with NT AUTHORITY\\SYSTEM that will not correctly validate the input. This can lead to an arbitrary code execution with the privileges of the service.","status":"published","published":"2021-08-02T10:24:31.012Z","modified":"2024-09-16T17:42:36.084Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:33:10.204494Z"}],"euvd":[{"id":"EUVD-2021-20219","description":"In MB connect line mbDIALUP versions \u003c= 3.9R0.0 a remote attacker can send a specifically crafted HTTP request to the service running with NT AUTHORITY\\SYSTEM that will not correctly validate the input. This can lead to an arbitrary code execution with the privileges of the service.","status":"published","published":"2021-08-02T10:24:31Z","modified":"2024-09-16T17:42:36Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:55:39.660997Z"}],"ghsa":[{"id":"GHSA-hrmp-939q-g4mq","title":"In MB connect line mbDIALUP versions \u003c= 3.9R0.0 a low privileged local attacker can send a...","description":"In MB connect line mbDIALUP versions \u003c= 3.9R0.0 a low privileged local attacker can send a command to the service running with NT AUTHORITY\\SYSTEM that won't be validated correctly and allows for an arbitrary code execution with the privileges of the service.","status":"published","published":"2022-05-24T19:09:36Z","modified":"2023-01-30T05:01:10Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-20","CWE-269"],"updated_at":"2026-11-02T14:46:21.093669Z"}],"nvd":[{"id":"CVE-2021-33527","description":"In MB connect line mbDIALUP versions \u003c= 3.9R0.0 a remote attacker can send a specifically crafted HTTP request to the service running with NT AUTHORITY\\SYSTEM that will not correctly validate the input. This can lead to an arbitrary code execution with the privileges of the service.","status":"published","published":"2021-08-02T11:15:11.287Z","modified":"2026-06-17T03:54:43.317Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:06:56.562207Z"}]}}