CVE-2025-47315

7.8

Qualcomm · Snapdragon

A use after free vulnerability in specific Qualcomm Snapdragon processors allows for memory corruption triggered by repeated memory unmap requests from a guest virtual machine.

Executive summary

A high-severity use after free vulnerability in Qualcomm Snapdragon processors could allow a local attacker to achieve memory corruption and potentially compromise system integrity.

Vulnerability

The vulnerability is a use after free condition (CWE-416) occurring during the handling of memory unmap requests. An attacker with low-privileged access within a guest virtual machine can trigger this memory corruption to impact the host system.

Business impact

The vulnerability carries a CVSS score of 7.8, reflecting its potential for total impact on confidentiality, integrity, and availability. Successful exploitation could allow a local attacker to execute arbitrary code or cause system instability, leading to significant service disruption and potential unauthorized access to sensitive data processed by the affected Snapdragon hardware.

Remediation

Immediate Action: Review the September 2025 Qualcomm Security Bulletin and apply the latest firmware or software updates provided by your device manufacturer.

Proactive Monitoring: Monitor system logs for unexpected crashes, kernel panics, or unusual memory management errors that may indicate exploitation attempts.

Compensating Controls: Ensure that virtual machine isolation boundaries are strictly enforced and limit user privileges within guest environments to minimize the attack surface.

Exploitation status

Public Exploit Available: No

Analyst recommendation

Given the severity of memory corruption flaws in hardware-level components, administrators must treat this as a high-priority update. Identify all hardware utilizing the listed Snapdragon chipsets and coordinate with vendors to ensure that security patches are applied as soon as they are released for your specific device models.

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