{"cve":"CVE-2020-27402","nvd":{"published":"2020-11-05T15:15:34.920","modified":"2026-06-17T03:09:12.593","status":"Modified","description":"The HK1 Box S905X3 TV Box contains a vulnerability that allows a local unprivileged user to escalate to root using the /system/xbin/su binary via a serial port (UART) connection or using adb.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-004.md","https://sick.codes/sick-2020-004/","https://threatpost.com/authentication-bug-android-smart-tv-data-theft/160025/","https://www.cybersecurity-help.cz/vdb/SB2020101404","https://www.securitylab.ru/news/513051.php"],"products":["hindotech:hk1_box_s905x3_firmware"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-27402","score":0.00537,"percentile":0.45287,"date":"2026-10-31"},"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."]}