PT-2026-22560 · Samsung · Samsung
CVE-2026-20435
·
Published
2026-03-02
·
Updated
2026-07-13
CVSS v3.1
4.6
Medium
| Vector | AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
Samsung Preloader (affected versions not specified)
MediaTek chipsets (affected versions not specified)
Description
A logic error in the preloader allows the reading of device unique identifiers, leading to local information disclosure. This flaw exists below the operating system and can be exploited via USB in under 45 seconds, even when the device is powered off. An attacker with physical access to the device can bypass lock screens, encryption, and USB protections to extract sensitive data, including IMEI numbers, serial numbers, and cryptographic keys such as seed phrases from crypto wallets. Approximately 875 million Android devices, representing roughly 25% of the market, are potentially affected.
Recommendations
Apply the security update provided by the device manufacturer that includes Patch ID ALPS10607099.
As a temporary mitigation, restrict physical access to the device to prevent unauthorized USB connections.
Fix
Insufficiently Protected Credentials
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Weakness Enumeration
Related Identifiers
Affected Products
Samsung