CVE-2025-27030
📋 TL;DR
This CVE-2025-27030 vulnerability allows unauthorized information disclosure when calibration data is invoked from user space to update firmware size. It affects Qualcomm devices and systems using vulnerable firmware components. Attackers could potentially access sensitive calibration data that should remain protected.
💻 Affected Systems
- Qualcomm chipsets and devices using affected firmware
📦 What is this software?
Snapdragon Auto 5g Modem Rf Firmware by Qualcomm
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Snapdragon Auto 5g Modem Rf Gen 2 Firmware by Qualcomm
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Video Collaboration Vc1 Platform Firmware by Qualcomm
View all CVEs affecting Video Collaboration Vc1 Platform Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Sensitive calibration data and firmware information could be exfiltrated, potentially revealing device-specific configuration details that could aid in further attacks or reverse engineering.
Likely Case
Limited information disclosure of calibration parameters that may not contain highly sensitive data but could still reveal device characteristics.
If Mitigated
With proper access controls and firmware validation, the impact would be minimal as unauthorized user space access would be blocked.
🎯 Exploit Status
Requires user space access and ability to invoke specific calibration operations. No public exploit code available as of advisory date.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Qualcomm September 2025 security bulletin for specific patched versions
Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/september-2025-bulletin.html
Restart Required: No
Instructions:
1. Check Qualcomm advisory for affected chipset/device list. 2. Obtain firmware updates from device manufacturer. 3. Apply firmware patches following manufacturer instructions. 4. Verify patch installation.
🔧 Temporary Workarounds
Restrict user space calibration access
allImplement access controls to prevent unauthorized user space applications from invoking calibration operations
🧯 If You Can't Patch
- Implement strict application sandboxing and privilege separation
- Monitor for unusual calibration data access patterns in system logs
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against Qualcomm's affected version list in September 2025 bulletinCheck Version:
Device-specific commands vary by manufacturer; typically 'getprop' or manufacturer-specific firmware check commandsVerify Fix Applied:
Verify firmware version has been updated to patched version specified in Qualcomm advisory📡 Detection & Monitoring
Log Indicators:
- Unusual calibration data access from user space applications
- Firmware size modification attempts
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
Search for calibration-related system calls or firmware modification attempts from non-privileged processes