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 not needed for exploitation. Patch ID: WCNCR00465153; Issue ID: MSV-4927.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - security@mediatek.com

Published

2026-02-02

Last modified

2026-03-30

Weaknesses

CWE-787

Affected products

• Matter (Google)
• Mediatek Chipset (Mediatek Inc.)

References

• https://corp.mediatek.com/product-security-bulletin/February-2026