CVE-2026-20484

Severity: medium (CVSS 4.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-03 · updated 2026-10-23
Weakness: CWE-201

Description

In TFA, there is a possible information disclosure due to a missing permission check. This could lead to local information disclosure if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11053160; Issue ID: MSV-8004.

Affected products

Mediatek Mt6739 Firmware: all versions
Mediatek Mt6761 Firmware: all versions
Mediatek Mt6765 Firmware: all versions
Mediatek Mt6768 Firmware: all versions
Mediatek Mt6781 Firmware: all versions
Mediatek Mt6789 Firmware: all versions
Mediatek Mt6833 Firmware: all versions
Mediatek Mt6835 Firmware: all versions
Mediatek Mt6853 Firmware: all versions
Mediatek Mt6855 Firmware: all versions
Mediatek Mt6877 Firmware: all versions
Mediatek Mt6878 Firmware: all versions
Mediatek Mt6879 Firmware: all versions
Mediatek Mt6883 Firmware: all versions
Mediatek Mt6885 Firmware: all versions
Mediatek Mt6886 Firmware: all versions
Mediatek Mt6889 Firmware: all versions
Mediatek Mt6893 Firmware: all versions
Mediatek Mt6895 Firmware: all versions
Mediatek Mt6897 Firmware: all versions
Mediatek Mt6899 Firmware: all versions
Mediatek Mt6983 Firmware: all versions
Mediatek Mt6985 Firmware: all versions
Mediatek Mt6988 Firmware: all versions
Mediatek Mt6989 Firmware: all versions
Mediatek Mt6991 Firmware: all versions
Mediatek Mt6993 Firmware: all versions
Mediatek Mt8171 Firmware: all versions
Mediatek Mt8188 Firmware: all versions
Mediatek Mt8189 Firmware: all versions

References

https://www.mediatek.com/product-security-bulletin/August-2026

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