Known exploited · Android
CVE-2020-0041: Android Kernel Out-of-Bounds Write Vulnerability
What it is
Android Kernel binder_transaction of binder.c contains an out-of-bounds write vulnerability due to an incorrect bounds check that could allow for local privilege escalation. This vulnerability was observed chained with CVE-2019-2215 and CVE-2020-0069 under exploit chain "AbstractEmu."
- Vendor
- Android
- Product
- Android Kernel
- Added to KEV
- November 3, 2021
- CISA due date
- May 3, 2022
- Ransomware use
- Unknown
What CISA requires
Apply updates per vendor instructions.
Forensic triage
No
What to do now
- Find every instance of Android Kernel you run, including the forgotten ones, and check its version against the vendor advisory.
- Apply the vendor's fix or mitigation, before May 3, 2022 if you are bound by CISA's deadline, sooner if it faces the internet.
- Assume it was tried against you already: look for signs of exploitation from the date it was added, not from the day you patched.
References
H2 Security
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Start freeSource: CISA Known Exploited Vulnerabilities Catalog (public domain), catalog version 2026.10.01.