CVE-2025-47359
📋 TL;DR
CVE-2025-47359 is a use-after-free vulnerability in Qualcomm memory management APIs that allows memory corruption when multiple threads simultaneously access memory free operations. This affects devices using vulnerable Qualcomm chipsets, potentially leading to arbitrary code execution or system crashes.
💻 Affected Systems
- Qualcomm chipsets with vulnerable memory management APIs
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with kernel privileges leading to complete system compromise
Likely Case
Application crashes, denial of service, or limited privilege escalation
If Mitigated
Contained process crashes without privilege escalation
🎯 Exploit Status
Requires race condition timing and specific memory operations
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Qualcomm February 2026 security bulletin
Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/february-2026-bulletin.html
Restart Required: Yes
Instructions:
1. Check device manufacturer for firmware updates 2. Apply Qualcomm-provided patches 3. Reboot device after update
🔧 Temporary Workarounds
Thread synchronization enforcement
allImplement proper mutex locks around memory operations
Memory operation isolation
allIsolate memory operations to single-threaded contexts
🧯 If You Can't Patch
- Implement strict application sandboxing to limit impact
- Monitor for abnormal process crashes or memory corruption patterns
🔍 How to Verify
Check if Vulnerable:
Check chipset version and compare against Qualcomm advisoryCheck Version:
adb shell getprop ro.bootloader (for Android devices)Verify Fix Applied:
Verify firmware version matches patched version from manufacturer📡 Detection & Monitoring
Log Indicators:
- Multiple thread access violations
- Memory corruption errors
- Unexpected process terminations
Network Indicators:
- Unusual inter-process communication patterns
SIEM Query:
process_termination: "segmentation fault" OR "memory corruption" AND device_chipset: "Qualcomm"