CVE-2025-47355
📋 TL;DR
This vulnerability allows memory corruption through improper handling of remote procedure IOCTL calls, potentially leading to arbitrary code execution. It affects systems using Qualcomm components that expose vulnerable IOCTL interfaces. Attackers could exploit this to gain elevated privileges or crash affected systems.
💻 Affected Systems
- Qualcomm chipsets and associated firmware
📦 What is this software?
Snapdragon 7c\+ Gen 3 Compute Firmware by Qualcomm
View all CVEs affecting Snapdragon 7c\+ Gen 3 Compute Firmware →
Snapdragon 8cx Gen 3 Compute Platform \(sc8280xp Ab\) Firmware by Qualcomm
View all CVEs affecting Snapdragon 8cx Gen 3 Compute Platform \(sc8280xp Ab\) Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with kernel-level code execution, allowing attackers to install persistent malware, steal sensitive data, or pivot to other systems.
Likely Case
Local privilege escalation allowing attackers to gain root/admin access on compromised devices, potentially leading to data theft or further network exploitation.
If Mitigated
System crash or denial of service if memory corruption leads to instability rather than successful exploitation.
🎯 Exploit Status
Exploitation requires understanding of IOCTL interface and memory layout; typically requires local access or ability to execute code
🛠️ 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/firmware versions. 2. Apply firmware updates from device manufacturer. 3. Reboot system after update. 4. Verify patch installation.
🔧 Temporary Workarounds
Restrict IOCTL access
linuxLimit access to vulnerable IOCTL interfaces through kernel module restrictions or SELinux/AppArmor policies
# Example: Check current SELinux policies
sestatus
# Review and restrict vulnerable kernel modules
Disable unnecessary kernel modules
linuxRemove or disable Qualcomm kernel modules that expose vulnerable IOCTL interfaces if not required
# List loaded modules
lsmod | grep qualcomm
# Remove module if safe
rmmod module_name
🧯 If You Can't Patch
- Implement strict access controls to prevent unauthorized users from accessing vulnerable interfaces
- Deploy endpoint detection and response (EDR) solutions to monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check Qualcomm chipset version and firmware against advisory; examine kernel logs for IOCTL-related errorsCheck Version:
# Check Qualcomm chipset info
cat /proc/cpuinfo | grep -i qualcomm
# Check kernel version
uname -rVerify Fix Applied:
Verify firmware version matches patched version from Qualcomm bulletin; test IOCTL calls to confirm proper bounds checking📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages
- IOCTL-related access violations in system logs
- Unexpected process crashes with memory corruption errors
Network Indicators:
- Unusual local process communication patterns
- Suspicious inter-process communication attempts
SIEM Query:
source="kernel" AND ("panic" OR "corruption" OR "ioctl") AND qualcomm