KEYMASTER · CVE-2026-55346 · Infrastructure
NO FIX YET
A missing bounds check in km_read_data_response in keymaster.c allows an out-of-bounds write on the heap. A local attacker with System-level execution privileges can escalate privilege, and no user interaction is needed.
first public Nov 10, 2026 · 1 source
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The sources describe a local escalation of privilege in Android keymaster code that needs System execution privileges first. The sources do not name affected Android versions or devices, so unknown.
Who cares android, keymaster
Unknown from the sources.
No fix yet, per the sources.
In km_read_data_response of keymaster.c, there is a possible way to trigger an out of bounds write on the heap due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
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