CVE-2026-20528

In ccci, there is a possible out of bounds write and read due to a missing bounds check. This could lead to local information disclosure, memory corruption, crashes, or privilege escalation if a malicious actor has already obtained the System privilege. User interaction is needed for exploitation. Patch ID: ALPS11428950 (Note: For MT6880, MT6890) / ALPS10563453 (Note: For MT6980D, MT6990, MT6986, MT6986D, MT6813, MT6988) / AUTO00858766 (Note: For MT2735, MT2737); Issue ID: MSV-9893.

CVSS 3.1

6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-25)

CWE

CWE-787

Published

2026-10-05

Modified

2026-10-09

Record from

the NVD, synced 2026-10-19

Affected

• mediatek:mt2735_firmware
• mediatek:mt2737_firmware
• mediatek:mt6813_firmware
• mediatek:mt6880_firmware
• mediatek:mt6890_firmware
• mediatek:mt6980d_firmware
• mediatek:mt6986_firmware
• mediatek:mt6986d_firmware
• mediatek:mt6988_firmware
• mediatek:mt6990_firmware

References

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

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