CVE-2026-20477

EUVD-2026-52066
In display, 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: ALPS11009963; Issue ID: MSV-7658.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6 MEDIUM
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 2.19%
Affected Products (NVD)
VendorProductVersion
mediatekmt8910_firmware
-
mediatekmt6991_firmware
-
mediatekmt6993_firmware
-
mediatekmt8188_firmware
-
mediatekmt8189_firmware
-
mediatekmt8668_firmware
-
mediatekmt8676_firmware
-
mediatekmt8678_firmware
-
mediatekmt8781_firmware
-
mediatekmt8799_firmware
-
𝑥
= Vulnerable software versions
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://www.mediatek.com/product-security-bulletin/August-2026