CVE-2026-20407

EUVD-2026-5141
In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00464377; Issue ID: MSV-4905.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.3 CRITICAL
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA-ADPADP
9.3 CRITICAL
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
mediateknbiot_sdk
𝑥
≤ 3.8
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://corp.mediatek.com/product-security-bulletin/February-2026