{"id":"CVE-2021-4228","aliases":["EUVD-2021-34086","GHSA-83r7-pm46-hpfw"],"status":"published","title":"Hard-coded TLS Certificate","description":"Use of hard-coded TLS certificate by default allows an attacker to perform Man-in-the-Middle (MitM) attacks even in the presence of the HTTPS connection. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.00.0.","severity":{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.10176,"percentile":0.957,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-321","CWE-798"],"published":"2022-10-24T00:00:00Z","modified":"2026-06-17T04:19:18Z","products":[{"vendor":"lanner inc","product":"iac-ast2500a"},{"vendor":"lannerinc","product":"iac-ast2500_firmware"}],"references":[{"url":"https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-4228/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4228"},{"url":"https://www.nozominetworks.com/labs/vulnerability-advisories/CVE-2021-4228/"},{"url":"https://github.com/advisories/GHSA-83r7-pm46-hpfw"}],"sources":{"cve":[{"id":"CVE-2021-4228","title":"Hard-coded TLS Certificate","description":"Use of hard-coded TLS certificate by default allows an attacker to perform Man-in-the-Middle (MitM) attacks even in the presence of the HTTPS connection. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.00.0.","status":"published","published":"2022-10-24T00:00:00Z","modified":"2025-05-05T20:28:17.148Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-321"],"updated_at":"2026-11-02T14:33:07.697752Z"}],"euvd":[{"id":"EUVD-2021-34086","description":"Use of hard-coded TLS certificate by default allows an attacker to perform Man-in-the-Middle (MitM) attacks even in the presence of the HTTPS connection. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.00.0.","status":"published","published":"2022-10-24T00:00:00Z","modified":"2025-05-05T20:28:17Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T20:32:55.242615Z"}],"ghsa":[{"id":"GHSA-83r7-pm46-hpfw","title":"Use of hard-coded TLS certificate by default allows an attacker to perform Man-in-the-Middle ...","description":"Use of hard-coded TLS certificate by default allows an attacker to perform Man-in-the-Middle (MitM) attacks even in the presence of the HTTPS connection. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.00.0.","status":"published","published":"2022-10-24T19:00:18Z","modified":"2023-01-27T05:02:03Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:42:00.879238Z"}],"nvd":[{"id":"CVE-2021-4228","description":"Use of hard-coded TLS certificate by default allows an attacker to perform Man-in-the-Middle (MitM) attacks even in the presence of the HTTPS connection. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.00.0.","status":"published","published":"2022-10-24T14:15:50.107Z","modified":"2026-06-17T04:19:18.557Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-321","CWE-798"],"updated_at":"2026-11-02T14:07:06.906968Z"}]}}