A path traversal vulnerability in the Huawei HarmonyOS virtualization base module poses a high risk to data confidentiality and system integrity.

This is a path traversal vulnerability (CWE-22) residing in the virtualization base module. Exploitation requires the attacker to have local access with low privileges to manipulate file paths and potentially access restricted directories.

Successful exploitation of this vulnerability could lead to the unauthorized disclosure of sensitive information stored within the virtualization environment. With a CVSS score of 8.4, this flaw represents a significant security risk, as it undermines the isolation boundaries typically expected in a virtualized architecture. Unauthorized access to these files can result in data breaches and a loss of system trust.

Immediate Action: Administrators should apply the security updates provided by Huawei in the August 2025 security bulletin immediately.

Proactive Monitoring: Security teams should monitor system access logs for unusual file access patterns or attempts to traverse directory structures originating from low-privileged user accounts.

Compensating Controls: Ensure that host-based intrusion detection systems are active and that strict file system permissions are enforced to limit the impact of path traversal attempts.

Public Exploit Available: Unknown.

Given the high CVSS severity score, organizations utilizing HarmonyOS versions 5.0.1 or 5.0.2 must prioritize the application of vendor-supplied patches. Prompt remediation is essential to maintain the integrity of the virtualization layer and protect sensitive data from unauthorized local access.