{"cve":"CVE-2023-6448","nvd":{"published":"2023-12-05T18:15:12.643","modified":"2026-06-17T06:50:46.670","status":"Analyzed","description":"Unitronics VisiLogic before version 9.9.00, used in Vision and Samba PLCs and HMIs, uses a default administrative password. An unauthenticated attacker with network access can take administrative control of a vulnerable system.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-798","CWE-1188"],"references":["https://downloads.unitronicsplc.com/Sites/plc/Technical_Library/Unitronics-Cybersecurity-Advisory-2023-001-CVE-2023-6448.pdf","https://downloads.unitronicsplc.com/Sites/plc/Visilogic/Version_Changes-Bug_Reports/VisiLogic%209.9.00%20Version%20changes.pdf","https://www.cisa.gov/news-events/alerts/2023/11/28/exploitation-unitronics-plcs-used-water-and-wastewater-systems","https://www.unitronicsplc.com/cyber_security_vision-samba/","https://downloads.unitronicsplc.com/Sites/plc/Technical_Library/Unitronics-Cybersecurity-Advisory-2023-001-CVE-2023-6448.pdf"],"products":["unitronics:samba_3.5_firmware","unitronics:samba_4.3_firmware","unitronics:samba_7_firmware","unitronics:visilogic","unitronics:vision1040_firmware","unitronics:vision120_firmware","unitronics:vision1210_firmware","unitronics:vision130_firmware","unitronics:vision230_firmware","unitronics:vision280_firmware","unitronics:vision290_firmware","unitronics:vision350_firmware","unitronics:vision430_firmware","unitronics:vision530_firmware","unitronics:vision560_firmware","unitronics:vision570_firmware","unitronics:vision700_firmware"],"source":"nvd","synced_at":"2026-10-19T21:42:34.585441961+00:00"},"epss":{"cve":"CVE-2023-6448","score":0.02089,"percentile":0.81607,"date":"2026-10-31"},"kev":{"cve":"CVE-2023-6448","date_added":"2023-12-11","due_date":"2023-12-18","vendor":"Unitronics","product":"Vision PLC and HMI","known_ransomware":false},"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."]}