Review reviewHigh

CVE-2026-58558

Huawei Harmony OS, EMUI

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

CVSS
7.8
EPSS
0.08%
0.35% percentile
CISA KEV
Not listed
Published
2026.07.15
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.08%
Technical severityCVSS 7.8

Vulnerability overview

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

Affected product and versions

Product
Huawei Harmony OS, EMUI
Affected versions
>= 4.3.1, >= 4.3.0, >= 4.2.0, >= 4.0.0, >= 15.0.0, >= 14.2.0, >= 14.0.0
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Huawei Harmony OS, EMUI and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
CWE-840
CVE-2026-58558 — Huawei Harmony OS, EMUI | SECUFOCUS NOW