CVE-2026-20407: Critical severity MediaTek Nbiot Sdk vulnerability

Published Feb 2, 2026
·
Updated

In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00464377; Issue ID: MSV-4905.

Affected Software

7 affected components
All of the following
MediaTek Nbiot Sdk<=3.8
Any of the following
MediaTek Mt7902
MediaTek Mt7920
MediaTek Mt7921
MediaTek Mt7922
MediaTek Mt7925
MediaTek Mt7927

Event History

Feb 2, 2026
CVE Published
via MITRE·08:14 AM
Data Sourced
via MITRE·08:14 AM
DescriptionWeakness
Data Sourced
via NVD·09:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-20407?

The severity of CVE-2026-20407 is classified as a medium risk due to the potential for local escalation of privilege.

2

How do I fix CVE-2026-20407?

To fix CVE-2026-20407, apply the patch with ID WCNCR00464377 provided by MediaTek.

3

What type of attack can result from exploiting CVE-2026-20407?

Exploiting CVE-2026-20407 can lead to a local escalation of privilege, allowing users to gain unauthorized access to elevated rights.

4

Is user interaction required for CVE-2026-20407 exploitation?

No, user interaction is not needed for the exploitation of CVE-2026-20407.

5

Which software versions are affected by CVE-2026-20407?

CVE-2026-20407 affects MediaTek NBIOT SDK versions up to and including 3.8.

Contact

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