CVE-2026-20454

MEDIUM

MediaTek Chipset - Time-of-check Time-of-use (TOCTOU) Race Condition

Title source: rule
STIX 2.1

Description

In geniezone, there is a possible out of bounds write due to a race condition. 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: ALPS10873936; Issue ID: MSV-6786.

References (1)

Core 1

Scores

CVSS v3 6.4
EPSS 0.0008
EPSS Percentile 0.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-367
Status published
Products (50)
mediatek/mt6739_firmware
mediatek/mt6761_firmware
mediatek/mt6765_firmware
mediatek/mt6768_firmware
mediatek/mt6781_firmware
mediatek/mt6789_firmware
mediatek/mt6835_firmware
mediatek/mt6853_firmware
mediatek/mt6855_firmware
mediatek/mt6877_firmware
... and 40 more
Published Jun 01, 2026
Tracked Since Jun 01, 2026