CVE-2026-20544

Published: Oct 5, 2026Modified: Oct 9, 2026

6.8

Vector

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

Exploitability: 0.9 / Impact: 5.9

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

Description

In meta, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege, if an attacker has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11049530 / ALPS11480843; Issue ID: MSV-7935.

Affected (59)

Products: Mediatek: Mt8910 Firmware, Mt6739 Firmware, Mt6761 Firmware, Mt6765 Firmware, Mt6768 Firmware, Mt6769 Firmware, Mt6781 Firmware, Mt6789 Firmware, Mt6835 Firmware, Mt6853 Firmware, Mt6855 Firmware, Mt6858 Firmware, Mt6877 Firmware, Mt6878 Firmware, Mt6879 Firmware, Mt6881 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, Mt6993 Firmware, Mt8126 Firmware, Mt8171 Firmware, Mt8188 Firmware, Mt8189 Firmware, Mt8195 Firmware, Mt8196 Firmware, Mt8367 Firmware, Mt8370 Firmware, Mt8390 Firmware, Mt8391 Firmware, Mt8668 Firmware, Mt8676 Firmware, Mt8678 Firmware, Mt8755 Firmware, Mt8766 Firmware, Mt8768 Firmware, Mt8775 Firmware, Mt8781 Firmware, Mt8786 Firmware, Mt8788 Firmware, Mt8791 Firmware, Mt8792 Firmware, Mt8793 Firmware, Mt8798 Firmware, Mt8799 Firmware, Mt8863 Firmware, Mt8873 Firmware, Mt8875 Firmware, Mt8883 Firmware, Mt8893 Firmware

59 products

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8910 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8910	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6739 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6739	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6761 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6761	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6765 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6765	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6768 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6768	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6769 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6769	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6781 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6781	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6789 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6789	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6835 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6835	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6853 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6853	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6855 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6855	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6858 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6858	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6877 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6877	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6878 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6878	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6879 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6879	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6881 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6881	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6883 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6883	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6885 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6885	All versions

Configuration S

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6886 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6886	All versions

Configuration T

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6889 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6889	All versions

Configuration U

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6893 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6893	All versions

Configuration V

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6895 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6895	All versions

Configuration W

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6897 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6897	All versions

Configuration X

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6899 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6899	All versions

Configuration Y

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6983 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6983	All versions

Configuration Z

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6985 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6985	All versions

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6989 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6989	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6991 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6991	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6993 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6993	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8126 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8126	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8171 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8171	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8188 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8188	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8189 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8189	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8195 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8195	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8196 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8196	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8367 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8367	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8370 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8370	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8390 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8390	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8391 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8391	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8668 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8668	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8676 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8676	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8678 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8678	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8755 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8755	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8766 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8766	All versions

Configuration S

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8768 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8768	All versions

Configuration T

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8775 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8775	All versions

Configuration U

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8781 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8781	All versions

Configuration V

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8786 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8786	All versions

Configuration W

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8788 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8788	All versions

Configuration X

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8791 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8791	All versions

Configuration Y

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8792 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8792	All versions

Configuration Z

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8793 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8793	All versions

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8798 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8798	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8799 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8799	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8863 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8863	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8873 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8873	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8875 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8875	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8883 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8883	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8893 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8893	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://www.mediatek.com/product-security-bulletin/October-2026

Source: security@mediatek.com

Vendor Advisory

Timeline

No history available yet.