CVE-2025-66331: Medium severity Huawei Harmonyos vulnerability
Published Dec 8, 2025
·Updated
Denial of service (DoS) vulnerability in the office service. Impact: Successful exploitation of this vulnerability may affect availability.
Affected Software
3 affected components
Huawei Harmonyos=5.0.1
Huawei Harmonyos=5.1.0
Huawei Harmonyos=6.0.0
Event History
Dec 8, 2025
CVE Published
via MITRE·08:12 AM
Data Sourced
via MITRE·08:12 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:15 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2025-66331?
CVE-2025-66331 is classified as a denial of service (DoS) vulnerability with potential impacts on system availability.
2
How do I fix CVE-2025-66331?
To mitigate CVE-2025-66331, ensure that your affected Huawei HarmonyOS devices are updated to the latest security patches provided by Huawei.
3
Which versions of Huawei HarmonyOS are affected by CVE-2025-66331?
CVE-2025-66331 affects Huawei HarmonyOS versions 5.0.1, 5.1.0, and 6.0.0.
4
What are the potential impacts of exploiting CVE-2025-66331?
Exploitation of CVE-2025-66331 may lead to reduced availability of the office service on affected devices.
5
Is CVE-2025-66331 being actively exploited in the wild?
As of now, there have been no confirmed reports of CVE-2025-66331 being actively exploited in the wild.