CVE-2020-28055A 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…
- 7.8HighCVSS base score
- 0.51%Exploitation in 30 daysEPSS · top 56% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By mitre
- 8 days later
· 8 days later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.51% · top 56% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
n/a
- affected n/a
References
References10
- https://twitter.com/sickcodes/ (opens in a new tab)x_refsource_MISCx_transferred
- https://twitter.com/johnjhacking/ (opens in a new tab)x_refsource_MISCx_transferred
- https://sick.codes/extraordinary-vulnerabilities-discovered-in-tcl-android-tvs-now-worlds-3rd-largest-tv-manufacturer/ (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-012.md (opens in a new tab)x_refsource_MISCx_transferred
- https://sick.codes/sick-2020-012 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_Press-Statement-and-Questions_11162020.pdf (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_GlobalFAQ.pdf (opens in a new tab)x_refsource_MISCx_transferred
- https://securityledger.com/2020/11/security-holes-opened-back-door-to-tcl-android-smart-tvs/ (opens in a new tab)x_refsource_MISCx_transferred
- https://securityledger.com/2020/11/tv-maker-tcl-denies-back-door-promises-better-process/ (opens in a new tab)x_refsource_MISCx_transferred
- https://support.tcl.com/vulnerabilities-found-in-tcl-android-tvs (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2020-20543 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-28055)Record last updated .