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CRITICAL · 9.8

CVE-2026-20418

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 ...

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
GoogleMatter<= 1.4
MediatekMt7931-
MediatekMt7933-

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2026-20418?

CVE-2026-20418 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 ...

How severe is CVE-2026-20418?

CVE-2026-20418 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-20418?

Check the references section above for vendor advisories and patch information. Affected products include: Google Matter, Mediatek Mt7931, Mediatek Mt7933.