CVE-2026-20455

Published: Jun 1, 2026Modified: Jul 22, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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: ALPS10873936; Issue ID: MSV-6784.

Affected (36)

Products: Mediatek: Mt6739 Firmware, Mt6761 Firmware, Mt6765 Firmware, Mt6768 Firmware, Mt6781 Firmware, Mt6789 Firmware, Mt6835 Firmware, Mt6853 Firmware, Mt6855 Firmware, Mt6877 Firmware, Mt6878 Firmware, Mt6879 Firmware, Mt6883 Firmware, Mt6885 Firmware, Mt6886 Firmware, Mt6889 Firmware, Mt6893 Firmware, Mt6895 Firmware, Mt6897 Firmware, Mt6899 Firmware, Mt6983 Firmware, Mt6985 Firmware, Mt6989 Firmware, Mt6991 Firmware, Mt8673 Firmware, Mt8765 Firmware, Mt8766 Firmware, Mt8768 Firmware, Mt8781 Firmware, Mt8786 Firmware, Mt8788 Firmware, Mt8791t Firmware, Mt8793 Firmware, Mt8797 Firmware, Mt8798 Firmware, Mt8910 Firmware

36 products

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6739 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6739	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6761 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6761	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6765 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6765	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6768 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6768	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6781 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6781	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6789 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6789	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6835 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6835	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6853 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6853	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6855 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6855	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6877 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6877	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6878 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6878	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6879 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6879	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6883 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6883	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6885 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6885	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6886 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6886	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6889 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6889	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6893 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6893	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6895 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6895	All versions

Configuration S

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6897 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6897	All versions

Configuration T

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6899 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6899	All versions

Configuration U

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6983 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6983	All versions

Configuration V

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6985 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6985	All versions

Configuration W

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6989 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6989	All versions

Configuration X

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6991 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6991	All versions

Configuration Y

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8673 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8673	All versions

Configuration Z

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8765 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8765	All versions

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8766 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8766	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8768 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8768	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8781 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8781	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8786 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8786	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8788 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8788	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8791t Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8791t	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8793 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8793	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8797 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8797	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8798 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8798	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8910 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8910	All versions

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (1)

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

Source: security@mediatek.com

Vendor Advisory

Timeline

No history available yet.