CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2020-28055
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
- CWE
- CWE-732
- Published
- Modified
- Record from
- the NVD, synced
Affected
- tcl:32s330_firmware
- tcl:40s330_firmware
- tcl:43s434_firmware
- tcl:50s434_firmware
- tcl:55s434_firmware
- tcl:65s434_firmware
- tcl:75s434_firmware
References
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-012.md
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_GlobalFAQ.pdf
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_Press-Statement-and-Questions_11162020.pdf
- https://securityledger.com/2020/11/security-holes-opened-back-door-to-tcl-android-smart-tvs/
- https://securityledger.com/2020/11/tv-maker-tcl-denies-back-door-promises-better-process/