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CVE-2020-27402

24
FAUCET Score

CVE-2020-27402 describes a privilege escalation vulnerability in the HK1 Box S905X3 TV Box, affecting both the device and its firmware. A local, unprivileged user can exploit this weakness via a serial port (UART) connection or ADB to gain root privileges through the /system/xbin/su binary. Rated 7.8 HIGH on CVSS, this vulnerability carries significant impact (C:H/I:H/A:H) with low attack complexity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or notable community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
hk1_x3_s905x3_4bit_v11_2019-11-05CPE matchmatch criteria
cpe:2.3:o:hindotech:hk1_box_s905x3_firmware:hk1_x3_s905x3_4bit_v11_2019-11-05:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 81st percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / sickcodes/security/blob/master/advisories/SICK-2020-004.md
ExploitThird Party Advisory
sick.codes / sick-2020-004
ExploitThird Party Advisory
threatpost.com / authentication-bug-android-smart-tv-data-theft/160025
Third Party Advisory
cybersecurity-help.cz / vdb/SB2020101404
Third Party Advisory
securitylab.ru / news/513051.php
Third Party Advisory