CVE-2026-20435 Information disclosure in MediaTek chipset

What is CVE-2026-20435?

CVE-2026-20435 is a medium-severity vulnerability in Google Android, published on 2 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-522

Which versions are affected by CVE-2026-20435?

It affects 5 products.

Products include Google Android, Linuxfoundation Yocto, Openwrt Openwrt, Rdkcentral Rdk-B, Zephyrproject Zephyr.

How do I fix CVE-2026-20435?

Apply the vendor's patch.

Is CVE-2026-20435 being exploited?

There is no known exploitation of CVE-2026-20435 in the wild and no public exploit code.

Other vulnerabilities in Google Android

• CVE-2026-58704 Google Pixel Improper Authorization Exploited High 8.8
• CVE-2025-48543 Android Runtime Use-After-Free Exploited High 8.8
• CVE-2023-35674 Android Framework Privilege Escalation Exploited High 8.8
• CVE-2025-48595 Android Framework Integer Overflow Exploited High 8.4
• CVE-2024-32896 Android Pixel Privilege Escalation Exploited High 8.1

All Google Android vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as A-493235107, ASB-A-493235107, GHSA-2727-h6mf-8pqp, M-ALPS10607099.