CVE-2026-20418
CRITICALThread - Privilege Escalation
Title source: llmDescription
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.
Scores
CVSS v3
9.8
EPSS
0.0006
EPSS Percentile
19.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Classification
CWE
CWE-787
Status
published
Affected Products (1)
google/matter
< 1.4
Timeline
Published
Feb 02, 2026
Tracked Since
Feb 18, 2026