{"id":"CVE-2021-34600","aliases":["EUVD-2021-21250","GHSA-5f54-x7j7-36p3"],"status":"published","title":"Telenot complex: Insecure AES Key Generation","description":"Telenot CompasX versions prior to 32.0 use a weak seed for random number generation leading to predictable AES keys used in the NFC tags used for local authorization of users. This may lead to total loss of trustworthiness of the installation.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00414,"percentile":0.36086,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-335","CWE-338"],"published":"2022-01-20T11:40:11Z","modified":"2026-06-17T03:56:12Z","exploits":[{"source":"pocgithub","id":"x41sec/CVE-2021-34600","title":"x41sec/CVE-2021-34600","date":"2022-01-17","url":"https://github.com/x41sec/CVE-2021-34600"}],"products":[{"vendor":"telenot","product":"compasx"},{"vendor":"telenot electronic gmbh","product":"compasx"}],"references":[{"url":"https://www.x41-dsec.de/lab/advisories/x41-2021-003-telenot-complex-insecure-keygen/","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34600"},{"url":"https://www.x41-dsec.de/lab/advisories/x41-2021-003-telenot-complex-insecure-keygen"},{"url":"https://github.com/advisories/GHSA-5f54-x7j7-36p3"}],"sources":{"cve":[{"id":"CVE-2021-34600","title":"Telenot complex: Insecure AES Key Generation","description":"Telenot CompasX versions prior to 32.0 use a weak seed for random number generation leading to predictable AES keys used in the NFC tags used for local authorization of users. This may lead to total loss of trustworthiness of the installation.","status":"published","published":"2022-01-20T11:40:11.195Z","modified":"2024-09-16T19:04:37.485Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-335"],"updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-21250","description":"Telenot CompasX versions prior to 32.0 use a weak seed for random number generation leading to predictable AES keys used in the NFC tags used for local authorization of users. This may lead to total loss of trustworthiness of the installation.","status":"published","published":"2022-01-20T11:40:11Z","modified":"2024-09-16T19:04:37Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:55:26.73018Z"}],"ghsa":[{"id":"GHSA-5f54-x7j7-36p3","title":"Telenot CompasX versions prior to 32.0 use a weak seed for random number generation leading to...","description":"Telenot CompasX versions prior to 32.0 use a weak seed for random number generation leading to predictable AES keys used in the NFC tags used for authorization of users.","status":"published","published":"2022-01-21T00:00:48Z","modified":"2024-09-16T21:31:34Z","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"}],"cwes":["CWE-335","CWE-338"],"updated_at":"2026-11-02T14:58:17.022968Z"}],"nvd":[{"id":"CVE-2021-34600","description":"Telenot CompasX versions prior to 32.0 use a weak seed for random number generation leading to predictable AES keys used in the NFC tags used for local authorization of users. This may lead to total loss of trustworthiness of the installation.","status":"published","published":"2022-01-20T12:15:08.24Z","modified":"2026-06-17T03:56:12.897Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:C/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-335"],"updated_at":"2026-11-02T14:07:03.821385Z"}]}}