{"id":"CVE-2021-45033","aliases":["EUVD-2021-31830","GHSA-q8fx-9mjf-3j27"],"status":"published","title":"A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions \u003c...","description":"A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions \u003c V16.20), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions \u003c V16.20), CP-8021 MASTER MODULE (All versions \u003c V16.20), CP-8022 MASTER MODULE WITH GPRS (All versions \u003c V16.20). An undocumented debug port uses hard-coded default credentials. If this port is enabled by a privileged user, an attacker aware of the credentials could access an administrative debug shell on the affected device.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00936,"percentile":0.61073,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-798"],"published":"2022-01-11T11:27:17Z","modified":"2026-06-17T04:13:04Z","products":[{"vendor":"siemens","product":"cp-8000 master module with i/o -25/+70°c"},{"vendor":"siemens","product":"cp-8000 master module with i/o -40/+70°c"},{"vendor":"siemens","product":"cp-8000_master_module_with_i\\/o_-25\\/\\+70_firmware"},{"vendor":"siemens","product":"cp-8000_master_module_with_i\\/o_-40\\/\\+70_firmware"},{"vendor":"siemens","product":"cp-8021 master module"},{"vendor":"siemens","product":"cp-8021_master_module_firmware"},{"vendor":"siemens","product":"cp-8022 master module with gprs"},{"vendor":"siemens","product":"cp-8022_master_module_with_gprs_firmware"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-324998.pdf","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45033"},{"url":"https://github.com/advisories/GHSA-q8fx-9mjf-3j27"}],"sources":{"cve":[{"id":"CVE-2021-45033","description":"A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions \u003c V16.20), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions \u003c V16.20), CP-8021 MASTER MODULE (All versions \u003c V16.20), CP-8022 MASTER MODULE WITH GPRS (All versions \u003c V16.20). An undocumented debug port uses hard-coded default credentials. If this port is enabled by a privileged user, an attacker aware of the credentials could access an administrative debug shell on the affected device.","status":"published","published":"2022-01-11T11:27:17Z","modified":"2024-08-04T04:32:13.621Z","cwes":["CWE-798"],"updated_at":"2026-11-02T14:33:02.580561Z"}],"euvd":[{"id":"EUVD-2021-31830","description":"A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions \u003c V16.20), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions \u003c V16.20), CP-8021 MASTER MODULE (All versions \u003c V16.20), CP-8022 MASTER MODULE WITH GPRS (All versions \u003c V16.20). An undocumented debug port uses hard-coded default credentials. If this port is enabled by a privileged user, an attacker aware of the credentials could access an administrative debug shell on the affected device.","status":"published","published":"2022-01-11T11:27:17Z","modified":"2024-08-04T04:32:13Z","updated_at":"2026-11-03T03:08:28.023592Z"}],"ghsa":[{"id":"GHSA-q8fx-9mjf-3j27","title":"A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions \u003c...","description":"A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions \u003c V16.20), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions \u003c V16.20), CP-8021 MASTER MODULE (All versions \u003c V16.20), CP-8022 MASTER MODULE WITH GPRS (All versions \u003c V16.20). An undocumented debug port uses hard-coded default credentials. If this port is enabled by a privileged user, an attacker aware of the credentials could access an administrative debug shell on the affected device.","status":"published","published":"2022-01-12T00:01:23Z","modified":"2023-02-03T05:04:34Z","cwes":["CWE-798"],"updated_at":"2026-11-02T14:53:34.195392Z"}],"nvd":[{"id":"CVE-2021-45033","description":"A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions \u003c V16.20), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions \u003c V16.20), CP-8021 MASTER MODULE (All versions \u003c V16.20), CP-8022 MASTER MODULE WITH GPRS (All versions \u003c V16.20). An undocumented debug port uses hard-coded default credentials. If this port is enabled by a privileged user, an attacker aware of the credentials could access an administrative debug shell on the affected device.","status":"published","published":"2022-01-11T12:15:10.093Z","modified":"2026-06-17T04:13:04.32Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":8.5,"vector":"AV:N/AC:M/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:07:03.418194Z"}]}}