CVE-2025-27040
📋 TL;DR
This CVE describes an information disclosure vulnerability in Qualcomm hypervisor logs that could expose sensitive system information. The vulnerability affects devices using Qualcomm chipsets with vulnerable hypervisor implementations. Attackers could potentially access privileged information that should remain protected.
💻 Affected Systems
- Qualcomm chipsets with vulnerable hypervisor implementations
📦 What is this software?
Immersive Home 214 Platform Firmware by Qualcomm
View all CVEs affecting Immersive Home 214 Platform Firmware →
Immersive Home 216 Platform Firmware by Qualcomm
View all CVEs affecting Immersive Home 216 Platform Firmware →
Immersive Home 316 Platform Firmware by Qualcomm
View all CVEs affecting Immersive Home 316 Platform Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Complete disclosure of hypervisor memory contents including cryptographic keys, authentication tokens, and other sensitive system data, potentially leading to full system compromise.
Likely Case
Partial information leakage revealing system configuration, memory layout, or debugging information that could aid further attacks.
If Mitigated
Limited exposure of non-critical system information with minimal impact on overall security posture.
🎯 Exploit Status
Requires access to hypervisor logs which typically need elevated privileges; exploitation details not publicly available
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Qualcomm October 2025 security bulletin for specific patched versions
Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2025-bulletin.html
Restart Required: Yes
Instructions:
1. Check Qualcomm advisory for affected chipset models. 2. Obtain firmware updates from device manufacturer. 3. Apply security patches following manufacturer instructions. 4. Reboot device to activate fixes.
🔧 Temporary Workarounds
Disable hypervisor logging
allTurn off hypervisor logging features if not required for operations
Specific commands vary by device and OS; consult manufacturer documentation
Restrict log access
Linux-basedImplement strict permissions on hypervisor log files and directories
chmod 600 /path/to/hypervisor/logs
chown root:root /path/to/hypervisor/logs
🧯 If You Can't Patch
- Implement strict access controls to limit who can read hypervisor logs
- Monitor for unusual access patterns to hypervisor log files and directories
🔍 How to Verify
Check if Vulnerable:
Check chipset version and firmware against Qualcomm's advisory; examine if hypervisor logging is enabledCheck Version:
cat /proc/cpuinfo | grep -i qualcomm (Linux/Android); specific commands vary by device manufacturerVerify Fix Applied:
Verify firmware version has been updated to patched version listed in Qualcomm advisory📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to hypervisor log files
- Unexpected reads of hypervisor log data
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
source="*hypervisor*" AND (event_type="file_read" OR event_type="access") AND user!="authorized_user"