CVE-2025-47351

7.8

Qualcomm · Snapdragon (FastConnect and SG/SM series processors)

A memory corruption vulnerability exists in various Qualcomm Snapdragon components due to improper handling of user buffers, potentially leading to integer overflow.

Executive summary

A memory corruption vulnerability in Qualcomm Snapdragon chipsets, triggered by improper buffer processing, poses a high risk of local privilege escalation or system instability.

Vulnerability

This vulnerability is classified as an integer overflow (CWE-190) occurring during the processing of user buffers. An authenticated local attacker can leverage this flaw to trigger memory corruption, which may result in high-impact consequences including unauthorized data access or system crashes.

Business impact

The vulnerability carries a CVSS score of 7.8, reflecting its potential for total impact on confidentiality, integrity, and availability. While the attack requires local access, successful exploitation allows a malicious actor to compromise the underlying system integrity, potentially leading to data theft or permanent denial of service on affected mobile or embedded devices.

Remediation

Immediate Action: Review the official Qualcomm October 2025 security bulletin and apply the relevant firmware or driver updates provided by your specific device manufacturer (OEM).

Proactive Monitoring: Monitor system logs for unusual crashes or unexpected service restarts that may indicate attempted memory corruption or buffer overflows.

Compensating Controls: Ensure that device security policies, such as restricted execution environments and kernel hardening, are active to limit the ability of low-privileged users to interact with sensitive hardware buffers.

Exploitation status

Public Exploit Available: No (exploit_available: false)

Analyst recommendation

Given the critical nature of memory corruption vulnerabilities in hardware chipsets, organizations and device administrators must prioritize the deployment of vendor-supplied firmware updates. Users should verify their device support status with the respective OEM and apply all available security patches immediately to mitigate the risk of local exploitation.

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