Description
Permission control vulnerability in the memory management module. Impact: Successful exploitation of this vulnerability may affect confidentiality.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-199845
1. Vulnerability Assessment and Severity Evaluation
The vulnerability EUVD-2025-199845, also known as CVE-2025-64314, is a permission control issue within the memory management module of Huawei's HarmonyOS version 5.1.0. The CVSS (Common Vulnerability Scoring System) base score of 9.3 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H breaks down as follows:
- Attack Vector (AV): Local (L) - The vulnerability can be exploited locally.
- Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources.
- Privileges Required (PR): None (N) - No special privileges are needed to exploit the vulnerability.
- User Interaction (UI): None (N) - No user interaction is required.
- Scope (S): Changed (C) - The vulnerability affects a different security scope.
- Confidentiality (C): High (H) - Successful exploitation results in high confidentiality impact.
- Integrity (I): High (H) - Successful exploitation results in high integrity impact.
- Availability (A): High (H) - Successful exploitation results in high availability impact.
Given these metrics, the vulnerability poses a significant risk to the confidentiality, integrity, and availability of affected systems.
2. Potential Attack Vectors and Exploitation Methods
The local attack vector suggests that an attacker needs physical or logical access to the device. Potential attack vectors include:
- Malicious Applications: An attacker could install a malicious application that exploits the vulnerability.
- Compromised User Accounts: An attacker with access to a user account could exploit the vulnerability to escalate privileges.
- Physical Access: An attacker with physical access to the device could exploit the vulnerability through direct interaction.
Exploitation methods might involve:
- Memory Corruption: Manipulating memory management functions to corrupt memory and gain unauthorized access.
- Privilege Escalation: Exploiting the vulnerability to gain higher privileges on the system.
- Data Exfiltration: Accessing and exfiltrating sensitive data stored in memory.
3. Affected Systems and Software Versions
The vulnerability specifically affects:
- Product: HarmonyOS
- Version: 5.1.0
- Vendor: Huawei
All devices running HarmonyOS version 5.1.0 are potentially vulnerable. This includes a wide range of Huawei devices, such as smartphones, tablets, and other consumer electronics.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Patch Management: Ensure that all affected devices are updated to the latest version of HarmonyOS that includes a fix for this vulnerability.
- Access Control: Implement strict access controls to limit physical and logical access to devices.
- Application Security: Use application whitelisting and regular audits to prevent the installation of malicious applications.
- User Education: Educate users about the risks of installing untrusted applications and the importance of maintaining device security.
- Monitoring and Detection: Implement monitoring tools to detect unusual activity that may indicate an exploitation attempt.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to the European cybersecurity landscape, particularly given the widespread use of Huawei devices. The potential for data breaches, unauthorized access, and system compromise could have far-reaching implications for both individual users and organizations. The high CVSS score underscores the urgency of addressing this vulnerability to prevent potential large-scale cyber incidents.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
- Memory Management Module: The vulnerability resides in the memory management module, which is responsible for allocating and managing system memory.
- Permission Control: The issue stems from inadequate permission controls, allowing unauthorized access to memory.
- Exploitation: Successful exploitation could lead to memory corruption, privilege escalation, and data exfiltration.
- Detection: Monitor for unusual memory access patterns, privilege escalation attempts, and unauthorized data access.
- Response: In case of detection, isolate the affected device, perform a forensic analysis, and apply the necessary patches.
Conclusion
EUVD-2025-199845 is a critical vulnerability that requires immediate attention from cybersecurity professionals. The potential for significant impact on confidentiality, integrity, and availability necessitates proactive mitigation strategies, including patching, access control, and continuous monitoring. Organizations and individuals using affected Huawei devices should prioritize updating to the latest secure version of HarmonyOS to mitigate the risk.