CVE-2026-24924 Overview
CVE-2026-24924 is an improper permission control vulnerability discovered in the print module of Huawei HarmonyOS. This security flaw allows local attackers with low-level privileges to bypass permission restrictions, potentially leading to unauthorized access to confidential service data. The vulnerability stems from inadequate access control mechanisms within the print module component.
Critical Impact
Successful exploitation of this vulnerability may allow local attackers to access sensitive service information, compromising confidentiality on affected HarmonyOS devices.
Affected Products
- Huawei HarmonyOS 6.0.0
- Huawei HarmonyOS devices with the vulnerable print module component
Discovery Timeline
- 2026-02-06 - CVE-2026-24924 published to NVD
- 2026-02-09 - Last updated in NVD database
Technical Details for CVE-2026-24924
Vulnerability Analysis
This vulnerability falls under CWE-264 (Permissions, Privileges, and Access Controls), indicating a fundamental flaw in how the print module enforces permission boundaries. The local attack vector requires an attacker to have existing access to the device, but only low-level privileges are needed to exploit the issue. No user interaction is required for successful exploitation.
The impact is primarily on confidentiality, as attackers can potentially read sensitive service data that should be restricted. The vulnerability does not directly affect system integrity or availability, making it a targeted information disclosure issue within the print service context.
Root Cause
The root cause of CVE-2026-24924 lies in improper permission validation within the HarmonyOS print module. The component fails to adequately verify that requesting processes have appropriate authorization before granting access to protected resources. This permission control weakness allows processes with insufficient privileges to access data intended only for higher-privileged services or applications.
Attack Vector
The attack requires local access to an affected HarmonyOS device. An attacker with low-level privileges can exploit the improper permission controls in the print module to access confidential service information. The attack does not require user interaction, meaning it can be executed silently once an attacker has established local access to the device.
The vulnerability manifests through inadequate access control checks in the print module service interface. Malicious applications or processes running on the device could leverage this flaw to read sensitive data from the print service that would normally be restricted. For detailed technical information, refer to the Huawei Security Bulletin.
Detection Methods for CVE-2026-24924
Indicators of Compromise
- Unusual print service activity from unauthorized or low-privilege applications
- Unexpected access attempts to print module resources by non-system processes
- Anomalous inter-process communication patterns involving the print service
- Log entries showing permission-related errors in the print module
Detection Strategies
- Monitor system logs for unauthorized access attempts to print module services
- Implement application behavior analysis to detect abnormal permission usage patterns
- Deploy endpoint detection solutions capable of monitoring HarmonyOS service interactions
- Review installed applications for suspicious permission requests related to print services
Monitoring Recommendations
- Enable verbose logging for the HarmonyOS print module to capture access attempts
- Implement real-time alerting for unauthorized service access patterns
- Conduct regular audits of application permissions on HarmonyOS devices
- Monitor for applications exhibiting privilege escalation behaviors
How to Mitigate CVE-2026-24924
Immediate Actions Required
- Update HarmonyOS to the latest security patch level as referenced in Huawei's February 2026 security bulletin
- Review and restrict installed applications to minimize attack surface
- Audit device permissions and revoke unnecessary access from non-essential applications
- Enable enhanced security monitoring on affected devices
Patch Information
Huawei has addressed this vulnerability in their February 2026 security bulletin. Users should apply the latest security updates to remediate CVE-2026-24924. The patch corrects the permission control mechanisms in the print module to ensure proper access validation. For detailed patch information and download instructions, refer to the Huawei Security Bulletin for February 2026.
Workarounds
- Limit device access to trusted users only to reduce local attack exposure
- Restrict installation of third-party applications until the patch is applied
- Disable or limit print module functionality if not required for device operation
- Implement application whitelisting to prevent execution of potentially malicious software
# Check current HarmonyOS version and patch level
# Navigate to: Settings > About Phone > Software Version
# Ensure security patch is dated February 2026 or later
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
