{"cve":"CVE-2023-33920","nvd":{"published":"2023-06-13T09:15:18.677","modified":"2026-06-17T06:02:31.147","status":"Modified","description":"A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05), CP-8050 MASTER MODULE (All versions < CPCI85 V05). The affected devices contain the hash of the root password in a hard-coded form, which could be exploited for UART console login to the device. An attacker with direct physical access could exploit this vulnerability.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":6.8},"cwes":["CWE-798"],"references":["http://packetstormsecurity.com/files/173370/Siemens-A8000-CP-8050-CP-8031-Code-Execution-Command-Injection.html","http://seclists.org/fulldisclosure/2023/Jul/14","https://cert-portal.siemens.com/productcert/pdf/ssa-731916.pdf","http://packetstormsecurity.com/files/173370/Siemens-A8000-CP-8050-CP-8031-Code-Execution-Command-Injection.html","http://seclists.org/fulldisclosure/2023/Jul/14"],"products":["siemens:cpci85_firmware"],"source":"nvd","synced_at":"2026-10-19T21:38:24.161619714+00:00"},"epss":{"cve":"CVE-2023-33920","score":0.00364,"percentile":0.30254,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}