CVE-2025-47321
7.8Qualcomm, Inc. · Snapdragon
A buffer overflow vulnerability in Qualcomm Snapdragon components allows local attackers to trigger memory corruption when processing packets from Unix clients.
Executive summary
A critical memory corruption vulnerability in multiple Qualcomm Snapdragon hardware components poses a significant risk of local privilege escalation or system instability.
Vulnerability
This is a classic buffer overflow (CWE-120) triggered by improper size checking during the copying of packets received from Unix clients. The vulnerability requires local access with low privileges to execute.
Business impact
The vulnerability carries a CVSS score of 7.8, indicating a high severity level. Successful exploitation allows an attacker to achieve high levels of confidentiality, integrity, and availability impact, potentially leading to full system compromise or denial of service on affected hardware.
Remediation
Immediate Action: Monitor the Qualcomm security bulletin portal for the release of firmware patches and apply them to affected Snapdragon components as soon as they become available.
Proactive Monitoring: Review system access logs for signs of unauthorized local activity or unexpected service restarts that may indicate memory corruption attempts.
Compensating Controls: Ensure that access to the affected device is restricted to authorized personnel only to minimize the risk of local exploitation.
Exploitation status
Public Exploit Available: No
Analyst recommendation
Given the potential for complete system impact, this vulnerability must be treated with high priority. Security teams should track the official Qualcomm security bulletin and coordinate with device manufacturers to deploy necessary firmware updates immediately upon release to mitigate the risk of exploitation.