CVE-2020-28055

HIGH
7.8
CVSS Score
Published: November 10, 2020 at 05:53 PM UTC
Updated: June 17, 2026 at 03:10 AM UTC
14 products affected across 1 vendor43S434 Firmware65S434 Firmware32S330 Firmware

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Severity
HIGH7.8
Exploit prediction
EPSS 0.5%

Description

A vulnerability in the TCL Android Smart TV series V8-R851T02-LF1 V295 and below and V8-T658T01-LF1 V373 and below by TCL Technology Group Corporation allows a local unprivileged attacker, such as a malicious App, to read & write to the /data/vendor/tcl, /data/vendor/upgrade, and /var/TerminalManager directories within the TV file system. An attacker, such as a malicious APK or local unprivileged user could perform fake system upgrades by writing to the /data/vendor/upgrage folder.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < v8-r851t10-lf1v091
Affected range stops below v8-r851t10-lf1v091, so it looks safe — our inference, not a vendor statement
tcl-32s330 (same device)
v < v8-r851t10-lf1v091
Affected range stops below v8-r851t10-lf1v091, so it looks safe — our inference, not a vendor statement
tcl-40s330 (same device)
v < v8-r851t02-lf1v440
Affected range stops below v8-r851t02-lf1v440, so it looks safe — our inference, not a vendor statement
tcl-43s434 (same device)
v < v8-r851t02-lf1v440
Affected range stops below v8-r851t02-lf1v440, so it looks safe — our inference, not a vendor statement
tcl-50s434 (same device)
v < v8-r851t02-lf1v440
Affected range stops below v8-r851t02-lf1v440, so it looks safe — our inference, not a vendor statement
tcl-55s434 (same device)
v < v8-r851t02-lf1v440
Affected range stops below v8-r851t02-lf1v440, so it looks safe — our inference, not a vendor statement
tcl-65s434 (same device)
v < v8-r851t02-lf1v440
Affected range stops below v8-r851t02-lf1v440, so it looks safe — our inference, not a vendor statement
tcl-75s434 (same device)
80%
All versions
80%
All versions
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-732

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