CVE-2020-0421

In appendFormatV of String8.cpp, there is a possible out of bounds write due to incorrect error handling. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11 Android-8.0Android ID: A-161894517

• CWE-755
• CWE-787

• https://source.android.com/security/bulletin/2020-10-01Patch, Vendor Advisory
• https://source.android.com/security/bulletin/2020-10-01Patch, Vendor Advisory

Published

Oct 14, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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