# CVE-2020-0069: Mediatek Multiple Chipsets Insufficient Input Validation Vulnerability

Source: https://junglewise.ai/threats/cve-2020-0069-mediatek-multiple-chipsets-insufficient-input-validation  
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-2020-0069 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2021-11-03

MediaTek Command Queue drivers contain an out-of-bounds write vulnerability due to insufficient input validation and missing SELinux restrictions in ioctl handlers. This flaw allows a local attacker to escalate privileges without user interaction. The vulnerability has been observed in the wild as part of the 'AbstractEmu' exploit chain.

## Quick answers

**Is CVE-2020-0069 exploited in the wild?** Yes. CVE-2020-0069 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.

**How severe is CVE-2020-0069?** Critical severity, with a CVSS score of 7.8, published 3 November 2021.

**Which products and versions are affected?** Google Android kernel Android kernel; MediaTek Command Queue driver; MediaTek Multiple Chipsets.

**Is there a fix for CVE-2020-0069?** 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-2020-0069 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2020-0069?** Check whether anything you run is named in the advisory. 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
- MediaTek Command Queue driver
- MediaTek Multiple Chipsets

## Timeline

- 2020-03-01: advisory: Android Security Bulletin - March 2020
- 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2021-11-03: disclosed: NVD Publication Date