CVE-2026-20418

CRITICAL

Google Matter < 1.4 - Out-of-bounds Write

Title source: llm
STIX 2.1

Description

In Thread, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00465153; Issue ID: MSV-4927.

References (1)

Core 1

Scores

CVSS v3 9.8
EPSS 0.0006
EPSS Percentile 19.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-787
Status published
Products (5)
google/matter < 1.4
MediaTek, Inc./MediaTek chipset MT7931
MediaTek, Inc./MediaTek chipset MT7933
MediaTek, Inc./MT7931 WCNCR00465153
MediaTek, Inc./MT7933 WCNCR00465153
Published Feb 02, 2026
Tracked Since Feb 18, 2026