What’s Vulnerable › Vulnerabilities

CVE-2020-21406

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-07-20 · updated 2026-06-17

Description

An issue was discovered in RK Smart TV Box MAX and V88 SmartTV box that allows attackers to cause a denial of service via the switchNextDisplayInterface service.

Affected products

• Rk Max Smart Tv Box Project Rk Max Smart Tv Box Firmware: all versions
• V88 Smart Tv Box Project V88 Smart Tv Box Firmware: all versions

References

• https://github.com/helloworldxp/TVBoxBugs/blob/master/RK_MAX_V88_SmartTV_Vulnerability
• https://github.com/helloworldxp/TVBoxBugs/blob/master/RK_MAX_V88_SmartTV_Vulnerability

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