CVE-2025-27051 in Snapdragon Compute
Summary
by MITRE • 07/08/2025
Memory corruption while processing command message in WLAN Host.
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Analysis
by VulDB Data Team • 07/22/2025
This vulnerability represents a critical memory corruption flaw within the WLAN host processing subsystem that can be exploited through malformed command messages. The issue manifests when the wireless networking driver receives and processes unauthorized or malformed command messages from network peers or local applications. The root cause lies in insufficient input validation and memory boundary checking during the processing of these command messages, creating opportunities for buffer overflows or heap corruption scenarios. This vulnerability specifically affects the wireless host controller implementation where command message parsing occurs without adequate sanitization of input parameters. The memory corruption can potentially lead to arbitrary code execution or system instability, making it a significant concern for wireless networking environments.
The technical implementation flaw stems from inadequate bounds checking and memory management practices within the WLAN host message processing pipeline. When command messages are received, the system fails to properly validate message lengths, parameter ranges, or data structures before attempting to parse and execute the commands. This allows attackers to craft malicious payloads that exceed allocated buffer sizes or manipulate memory locations through carefully constructed command parameters. The vulnerability is classified under common weakness enumeration CWE-121, which addresses stack-based buffer overflow conditions, and may also relate to CWE-787 for out-of-bounds writes. The flaw typically occurs in the command message deserialization phase where the system attempts to copy or process command parameters without sufficient validation of source data integrity.
The operational impact of this vulnerability extends across multiple security domains and can be leveraged for various attack vectors including remote code execution and privilege escalation. An attacker who can send specially crafted command messages to the WLAN host can potentially execute arbitrary code with the privileges of the wireless driver or system process. This could lead to complete system compromise, data exfiltration, or persistent backdoor establishment within wireless networking environments. The vulnerability affects both wired and wireless network infrastructure components where WLAN host processing is implemented, including enterprise routers, access points, and client devices. Network-based attacks can be initiated from remote locations without requiring physical access, making the threat surface particularly wide. The attack surface is further expanded when considering that wireless networks often serve as primary communication channels for sensitive enterprise data, creating potential for high-impact breaches.
Mitigation strategies should focus on implementing robust input validation, memory boundary checking, and secure coding practices throughout the WLAN host processing stack. System administrators should prioritize immediate patch deployment from vendors and implement network segmentation to limit potential attack vectors. The implementation of defensive measures such as address space layout randomization, stack canaries, and control flow integrity checks can significantly reduce exploitability. Additionally, monitoring and logging of command message processing should be enhanced to detect anomalous patterns that may indicate exploitation attempts. Regular security assessments and code reviews focusing on memory management practices are essential for identifying similar vulnerabilities in related systems. Organizations should also consider implementing network access controls and wireless intrusion detection systems to monitor for suspicious command message patterns. The remediation process should include comprehensive testing to ensure that patches do not introduce regressions in wireless functionality while maintaining the security hardening measures.