CVE-2026-20418: Critical severity Google Matter vulnerability
Published Feb 2, 2026
·Updated
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.
Affected Software
3 affected components
All of the following
Google Matter<=1.4
Any of the following
MediaTek Mt7931
MediaTek Mt7933
Event History
Feb 2, 2026
CVE Published
via MITRE·08:15 AM
Data Sourced
via MITRE·08:15 AM
DescriptionWeakness
Data Sourced
via NVD·09:15 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-20418?
The severity of CVE-2026-20418 is considered high due to its potential for remote escalation of privilege.
2
How do I fix CVE-2026-20418?
To fix CVE-2026-20418, apply the patch identified as Patch ID: WCNCR00465153.
3
Who is affected by CVE-2026-20418?
CVE-2026-20418 affects users of Google Matter software versions up to and including 1.4.
4
Is user interaction required to exploit CVE-2026-20418?
No, user interaction is not needed for the exploitation of CVE-2026-20418.
5
What kind of vulnerability is CVE-2026-20418?
CVE-2026-20418 is characterized as an out of bounds write vulnerability due to a missing bounds check.