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CVE-2020-21406

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.
7.5
CVSS
4.6
ShadowTrackr
NO
CISA KEV
-
NCSC.nl
CVSS v4.0 Metrics
Exploitability
Attack VectorNetwork
ComplexityLow
RequirementsPresent
PrivilegesNone
User InteractionNone
Threat
Exploit MaturityUnreported
Vulnerable System
ConfidentialityNone
IntegrityNone
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusUnavailable

Change Log
DateSourceChangesScore
2026-07-21nvdAV: P→N, AC: H→L, PR: H→N, UI: A→N, VA: N→H0.0 → 4.6
2026-07-21cve.orginitial, patch: Unavailable0.0

Affected Software
VendorProductVersion
rk_max_smart_tv_box_projectrk_max_smart_tv_box_firmwareAll versions
v88_smart_tv_box_projectv88_smart_tv_box_firmwareAll versions
Published: 2022-07-20