CVE-2026-24924
📋 TL;DR
This vulnerability involves improper permission control in the print module, allowing unauthorized access to sensitive information. It affects systems using the vulnerable print module and could compromise service confidentiality.
💻 Affected Systems
- Huawei products with vulnerable print module
📦 What is this software?
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Unauthorized users gain access to sensitive printed documents or system information, leading to data breaches.
Likely Case
Limited information disclosure of print job details or system data to unauthorized users.
If Mitigated
Minimal impact with proper access controls and network segmentation in place.
🎯 Exploit Status
Exploitation likely requires some level of access to the system
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Huawei advisory for specific fixed versions
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2026/2/
Restart Required: Yes
Instructions:
1. Visit Huawei advisory URL 2. Identify affected products 3. Download and apply recommended patches 4. Restart affected services
🔧 Temporary Workarounds
Restrict Print Service Access
linuxLimit network access to print services using firewall rules
iptables -A INPUT -p tcp --dport 631 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 631 -j DROP
Disable Unnecessary Print Services
linuxTurn off print services if not required
systemctl stop cups
systemctl disable cups
🧯 If You Can't Patch
- Implement strict access controls and least privilege principles for print services
- Monitor print service logs for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check system for affected Huawei products and compare versions against advisoryCheck Version:
Check product-specific version commands (varies by Huawei product)Verify Fix Applied:
Verify patch installation and test print service permissions📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to print services
- Failed permission checks in print module logs
Network Indicators:
- Unusual traffic to print service ports (typically 631, 9100)
SIEM Query:
source="print_service" AND (event_type="access_denied" OR event_type="permission_failure")