CVE-2025-53178
📋 TL;DR
A permission bypass vulnerability in the calendar storage module allows unauthorized access to calendar data. This affects Huawei head units where attackers could manipulate schedule reminder functions. The vulnerability impacts users of affected Huawei automotive systems.
💻 Affected Systems
- Huawei head units with calendar functionality
📦 What is this software?
Emui by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify or delete calendar entries, potentially causing missed appointments or disrupting scheduling functions in vehicle head units.
Likely Case
Unauthorized viewing of calendar data and potential manipulation of reminder settings without proper permissions.
If Mitigated
Limited impact with proper access controls and network segmentation in place.
🎯 Exploit Status
Exploitation requires access to the vehicle's systems; no public exploit details available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Huawei security bulletin for specific patched versions
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2025/7/
Restart Required: Yes
Instructions:
1. Check Huawei security bulletin for affected versions. 2. Apply security updates through official Huawei channels. 3. Restart the head unit after update installation.
🔧 Temporary Workarounds
Disable calendar storage module
allTemporarily disable the vulnerable calendar storage module if not essential
Specific commands unavailable; use system settings to disable calendar functionality
Restrict physical access
allLimit physical access to vehicle systems to prevent local exploitation
🧯 If You Can't Patch
- Implement strict access controls to vehicle diagnostic interfaces
- Monitor for unauthorized calendar modifications and system access attempts
🔍 How to Verify
Check if Vulnerable:
Check system version against Huawei's security bulletin for affected versionsCheck Version:
Check system information in head unit settings or consult vehicle documentationVerify Fix Applied:
Verify system version matches patched version from Huawei advisory and test calendar permission controls📡 Detection & Monitoring
Log Indicators:
- Unauthorized calendar access attempts
- Permission modification events in system logs
- Unexpected calendar data changes
Network Indicators:
- Unusual diagnostic network traffic to head units
- Unauthorized access attempts to vehicle systems
SIEM Query:
Search for calendar permission bypass attempts or unauthorized system access in automotive network logs