Live › vulnerability › CVE-2026-58956
A logic error in modpowF4 in avb_rsa.c, the Android Verified Boot RSA code, can let a forged signature pass verification. The sources say this leads to local privilege escalation with no extra execution privileges and no user interaction.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-11-02 20:35 UTC. All times on this page are UTC.
The sources do not name affected Android versions or devices, so it is unknown which builds are exposed. Teams that ship or manage Android-based devices should check their vendor's security bulletin for the fixed build.
No product ranges from the sources yet.
Unknown from the sources.
No fix yet, per the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
In modpowF4 of avb_rsa.c, there is a possible signature verification bypass due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
This page as .md · .json · in your agent: get_signal("CVE-2026-58956")
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.