CVE-2025-46591
📋 TL;DR
This CVE describes an out-of-bounds data read vulnerability in Huawei's authorization module that could allow attackers to read unauthorized memory contents. Successful exploitation could lead to information disclosure affecting service confidentiality. Huawei device users running affected software versions are potentially impacted.
💻 Affected Systems
- Huawei devices with affected authorization module
📦 What is this software?
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Attackers could read sensitive memory contents including authentication tokens, configuration data, or other confidential information stored in adjacent memory regions.
Likely Case
Information disclosure of non-critical system data or partial memory contents, potentially revealing system state or configuration details.
If Mitigated
Limited information disclosure with proper memory protections and access controls in place.
🎯 Exploit Status
CWE-602 indicates client-side injection vulnerability; exploitation likely requires some level of access or interaction with the authorization module
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Huawei advisory for specific patched versions
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2025/5/
Restart Required: Yes
Instructions:
1. Visit Huawei security advisory page. 2. Identify affected products and versions. 3. Apply recommended security updates. 4. Restart affected devices/services.
🔧 Temporary Workarounds
Restrict access to authorization services
allLimit network access to authorization modules to trusted sources only
Implement additional authentication layers
allAdd multi-factor authentication or additional authorization checks
🧯 If You Can't Patch
- Isolate affected systems in network segments with strict access controls
- Implement monitoring for unusual authorization module activity
🔍 How to Verify
Check if Vulnerable:
Check device/software version against Huawei's affected versions list in advisoryCheck Version:
Device/software specific; consult Huawei documentation for version checking commandsVerify Fix Applied:
Verify installed version matches or exceeds patched version from Huawei advisory📡 Detection & Monitoring
Log Indicators:
- Unusual authorization failures
- Unexpected memory access patterns in authorization module logs
- Authorization requests with malformed data
Network Indicators:
- Unusual traffic patterns to authorization services
- Requests attempting to trigger out-of-bounds conditions
SIEM Query:
Search for authorization module errors or memory access violations in system logs