CVE-2025-47364: Memory Corruption Buffer Overflow Issue

CVE-2025-47364 Overview

CVE-2025-47364 is a memory corruption vulnerability that occurs while calculating offset from a partition start point in Qualcomm components. The vulnerability is classified as an Integer Overflow (CWE-190), which can lead to memory corruption when arithmetic operations produce values that exceed the maximum storage capacity of the data type.

Critical Impact

Physical access to vulnerable Qualcomm-based devices could allow attackers to achieve high-impact compromise of confidentiality, integrity, and availability through memory corruption exploitation.

Affected Products

• Qualcomm chipset components (specific affected products detailed in vendor security bulletin)

Discovery Timeline

• February 2, 2026 - CVE-2025-47364 published to NVD
• February 3, 2026 - Last updated in NVD database

Technical Details for CVE-2025-47364

Vulnerability Analysis

This vulnerability stems from an integer overflow condition (CWE-190) that occurs during offset calculation operations relative to a partition start point. When performing arithmetic to determine memory offsets, the affected code fails to properly validate that the resulting value fits within the expected integer bounds. This can cause the calculated offset to wrap around to an unexpectedly small or negative value, leading to memory operations targeting unintended memory regions.

The physical attack vector indicates that exploitation requires direct physical access to the device, which limits remote exploitation scenarios but presents significant risk in scenarios involving device theft, malicious insiders, or supply chain attacks.

Root Cause

The root cause is an integer overflow vulnerability (CWE-190) in the partition offset calculation logic. When arithmetic operations are performed on partition-related values without proper bounds checking, the result can overflow the integer data type's maximum value. This causes the computed offset to wrap around, potentially pointing to memory locations outside the intended partition boundaries.

Attack Vector

Exploitation of this vulnerability requires physical access to the affected device. An attacker with physical access could craft malicious input or manipulate partition data to trigger the integer overflow condition during offset calculations. When the overflow occurs, subsequent memory operations using the corrupted offset value could:

1. Write data to unintended memory locations, potentially corrupting critical system structures
2. Read sensitive data from memory regions outside the partition
3. Cause system instability or crashes by accessing invalid memory addresses

The vulnerability mechanism involves manipulating values used in offset arithmetic such that the calculation results in an integer overflow, causing the final offset to wrap to an unexpected value that bypasses normal memory boundary protections.

Detection Methods for CVE-2025-47364

Indicators of Compromise

• Unexpected system crashes or reboots during partition-related operations
• Anomalous memory access patterns detected in kernel logs or debug output
• Evidence of physical tampering with device hardware or storage media

Detection Strategies

• Monitor system logs for memory corruption errors or kernel panics related to storage subsystems
• Implement integrity monitoring for partition table structures and bootloader components
• Deploy endpoint detection solutions capable of identifying anomalous memory access patterns
• Enable secure boot mechanisms to detect unauthorized modifications to firmware components

Monitoring Recommendations

• Enable verbose logging for storage and partition management subsystems where available
• Implement physical security controls and tamper detection mechanisms for critical devices
• Monitor for unusual device behavior following physical access events
• Review security audit logs for unauthorized partition or storage operations

How to Mitigate CVE-2025-47364

Immediate Actions Required

• Review the Qualcomm February 2026 Security Bulletin for affected product details
• Apply firmware and software updates from device manufacturers as they become available
• Implement physical access controls to limit exposure of vulnerable devices
• Consider enabling secure boot and verified boot mechanisms where supported

Patch Information

Qualcomm has disclosed this vulnerability in their February 2026 Security Bulletin. Device manufacturers using affected Qualcomm components should integrate the security patches into their firmware updates. End users should apply device firmware updates from their device manufacturers when available.

For detailed patch information and affected chipset listings, refer to the Qualcomm February 2026 Security Bulletin.

Workarounds

• Restrict physical access to devices containing potentially vulnerable Qualcomm components
• Enable secure boot and verified boot features to detect firmware tampering
• Implement device encryption to protect sensitive data in case of physical compromise
• Deploy mobile device management (MDM) solutions with tamper detection capabilities

Organizations should consult the Qualcomm security bulletin and their device manufacturers for device-specific mitigation guidance until patches are fully deployed.