Cyber Resilience

CVE-2025-66319

Huawei Harmonyos 5.1.0 … 6.0.0

Published
05 March 2026
Modified
05 March 2026
Patch / advisory
View advisory
CVSS Score v3.1 3.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
EPSS Score 0.0011 1th percentile
Risk Priority 15 floored blend · peak EPSS

Summary

CVE-2025-66319 is a low-severity an unspecified weakness vulnerability in Huawei Harmonyos. Its CVSS base score is 3.3 (Low).

Operationally, ranked at the 1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-6 (Least Privilege) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Permission control vulnerability in the resource scheduling module. Impact: Successful exploitation of this vulnerability may affect service integrity.

CWE(s)
CWE-264NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

Insufficient information to map techniques.
Confidence: LOW · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-68967Same product: Huawei Harmonyos
CVE-2024-54103Same product: Huawei Harmonyos
CVE-2026-24923Same product: Huawei Harmonyos
CVE-2025-48903Same product: Huawei Harmonyos
CVE-2023-52106Same product: Huawei Harmonyos
CVE-2023-52721Same product: Huawei Harmonyos
CVE-2026-24931Same product: Huawei Harmonyos
CVE-2026-24924Same product: Huawei Harmonyos
CVE-2024-51524Same product: Huawei Harmonyos
CVE-2024-54104Same product: Huawei Harmonyos

Affected Assets

huawei
harmonyos
5.1.0, 6.0.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AC-3 Access Enforcement
  • AC-6 Least Privilege
  • AC-4 Information Flow Enforcement
Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)

—

Mitigating Controls (NIST 800-53 r5) AI

AC-3 Access Enforcement good match
prevent

Directly enforces access decisions to block unauthorized permission use in the resource scheduling module.

AC-6 Least Privilege good match
prevent

Limits privileges assigned to the scheduling module so exploitation cannot alter service integrity.

AC-4 Information Flow Enforcement partial match
prevent

Enforces information flow rules that would constrain unauthorized resource scheduling actions.

References