# CVE-2020-0041: Android Kernel Out-of-Bounds Write Vulnerability

Source: https://junglewise.ai/threats/cve-2020-0041-android-kernel-out-of-bounds-write-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2021-11-03. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2020-0041 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2021-11-03

An out-of-bounds write vulnerability exists in the binder_transaction function of binder.c in the Android Kernel due to an incorrect bounds check. This flaw allows a local attacker to achieve privilege escalation without requiring user interaction.

Vendors: [Android](https://junglewise.ai/threats/vendors/android).

## Quick answers

**Is CVE-2020-0041 exploited in the wild?** Yes. CVE-2020-0041 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.

**How severe is CVE-2020-0041?** Critical severity, with a CVSS score of 7.8, published 3 November 2021.

**Which products and versions are affected?** Google Android Kernel Android kernel.

**Is there a fix for CVE-2020-0041?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2020-0041 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2020-0041?** Check whether you run Android Kernel. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Google Android Kernel Android kernel

## Timeline

- 2020-03-10: disclosed: NVD Published Date
- 2021-11-03: kev added: Date added to CISA Known Exploited Vulnerabilities Catalog
- 2021-11-03: exploited: Observed in the wild as part of the AbstractEmu exploit chain.

## Related threats

- [Android Kernel Use-After-Free Vulnerability](https://junglewise.ai/threats/cve-2019-2215-android-kernel-use-after-free-vulnerability)