CVE-2025-54650
📋 TL;DR
This vulnerability involves improper array index verification in an audio codec module, allowing attackers to potentially disrupt audio decoding functions. It affects Huawei devices with vulnerable audio codec implementations. The impact is limited to audio functionality rather than system compromise.
💻 Affected Systems
- Huawei devices with vulnerable audio codec module
📦 What is this software?
Harmonyos by Huawei
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Complete disruption of audio decoding functionality, potentially causing system instability or denial of service for audio-related features.
Likely Case
Audio playback failures, distorted audio output, or application crashes when processing malformed audio files.
If Mitigated
Minor audio glitches or no impact if proper input validation and boundary checks are implemented.
🎯 Exploit Status
Exploitation requires crafting specific audio files to trigger the array index issue; not trivial but feasible with reverse engineering.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Huawei security bulletin for specific patched versions
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2025/8/
Restart Required: No
Instructions:
1. Visit Huawei security advisory. 2. Identify affected device model. 3. Apply the latest security update via Settings > System & updates > Software update. 4. Verify update installation.
🔧 Temporary Workarounds
Disable vulnerable audio codec
Huawei devicesTemporarily disable or restrict the affected audio codec module to prevent exploitation.
Specific commands depend on device model and OS; consult Huawei documentation
🧯 If You Can't Patch
- Restrict processing of untrusted audio files from unknown sources
- Implement network segmentation to limit access to devices with audio processing capabilities
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against Huawei security advisory; if version matches affected range, device is vulnerable.Check Version:
Settings > About phone > Build number (exact command varies by device)Verify Fix Applied:
Verify installed security update version matches or exceeds patched version listed in Huawei advisory.📡 Detection & Monitoring
Log Indicators:
- Audio codec module crashes, abnormal audio process terminations, error logs mentioning array bounds or index issues
Network Indicators:
- Unusual audio file transfers to devices, though exploitation is local
SIEM Query:
Search for process crashes related to audio services or codec modules on Huawei devices