CVE-2020-27402

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-11-05 · updated 2026-06-17

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.

Affected products

Hindotech Hk1 Box S905X3 Firmware: hk1_x3_s905x3_4bit_v11_2019-11-05

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
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

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