CVE-2026-20435: Medium severity linuxfoundation Yocto vulnerability

Published Mar 2, 2026
·
Updated

In preloader, there is a possible read of device unique identifiers due to a logic error. This could lead to local information disclosure, if an attacker has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS10607099; Issue ID: MSV-6118.

Affected Software

44 affected components
All of the following
Any of the following
linuxfoundation Yocto=4.0
Rdkcentral Rdk-b=2022q3
Rdkcentral Rdk-b=2024q1
Google Android=14.0
Google Android=15.0
Google Android=16.0
OpenWrt OpenWrt=21.02.0
OpenWrt OpenWrt=23.05.0
zephyrproject zephyr=3.7.0
Any of the following
MediaTek Mt2737
MediaTek Mt6739
MediaTek Mt6761
MediaTek Mt6765
MediaTek Mt6768
MediaTek Mt6781
MediaTek Mt6789
MediaTek Mt6813
MediaTek Mt6833
MediaTek Mt6853
MediaTek Mt6855
MediaTek Mt6877
MediaTek Mt6878
MediaTek Mt6879
MediaTek Mt6880
MediaTek Mt6885
MediaTek Mt6886
MediaTek Mt6890
MediaTek Mt6893
MediaTek Mt6895
MediaTek Mt6897
MediaTek Mt6983
MediaTek Mt6985
MediaTek Mt6989
MediaTek Mt6990
MediaTek Mt6993
MediaTek Mt8169
MediaTek Mt8186
MediaTek Mt8188
MediaTek Mt8370
MediaTek Mt8390
MediaTek Mt8676
MediaTek Mt8678
MediaTek Mt8696
MediaTek Mt8793

Event History

Mar 2, 2026
CVE Published
via MITRE·08:39 AM
Data Sourced
via MITRE·08:39 AM
DescriptionWeakness
Data Sourced
via NVD·09:16 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-20435?

CVE-2026-20435 has a moderate severity rating due to potential local information disclosure.

2

How do I fix CVE-2026-20435?

To fix CVE-2026-20435, apply the official patches provided by the affected software vendors.

3

What are the affected systems for CVE-2026-20435?

CVE-2026-20435 affects multiple systems including specific versions of Yocto, RDK-B, Android, and OpenWrt.

4

Can CVE-2026-20435 be exploited remotely?

No, CVE-2026-20435 requires physical access to the device for exploitation.

5

Is user interaction required to exploit CVE-2026-20435?

No, user interaction is not required for exploiting CVE-2026-20435.

Company

Resources

Contact

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CVE-2026-20435 - Medium severity linuxfoundation Yocto vulnerability - SecAlerts