CVE-2026-20453

Severity: medium (CVSS 6.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-01 · updated 2026-07-22
Weakness: CWE-787

Description

In geniezone, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10886526; Issue ID: MSV-6791.

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 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 Mt6989 Firmware: all versions
Mediatek Mt6991 Firmware: all versions
Mediatek Mt8673 Firmware: all versions
Mediatek Mt8765 Firmware: all versions
Mediatek Mt8766 Firmware: all versions
Mediatek Mt8768 Firmware: all versions
Mediatek Mt8781 Firmware: all versions
Mediatek Mt8786 Firmware: all versions

References

https://corp.mediatek.com/product-security-bulletin/June-2026

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