CVE-2026-20491

In med, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS10981478 (Note: For MT6890, MT6990, MT6988) / AUTO00851173 (Note: For MT2735, MT2737); Issue ID: MSV-7652.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-25)

CWE

CWE-787

Published

2026-08-03

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

Affected

• mediatek:mt2735_firmware
• mediatek:mt2737_firmware
• mediatek:mt6890_firmware
• mediatek:mt6988_firmware
• mediatek:mt6990_firmware

References

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

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