CVE-2025-47368 is a buffer over-read vulnerability classified under CWE-126, discovered in Qualcomm Snapdragon components, specifically in the FastConnect 6900 and 7800 subsystems, as well as WCD9380, WCD9385, WSA8840, WSA8845, and WSA8845H modules. The vulnerability occurs due to improper validation when dereferencing a userspace address during MCDM IOCTL processing, leading to memory corruption. This flaw can be triggered by a local attacker with low privileges (PR:L) without requiring user interaction (UI:N). The vulnerability affects confidentiality, integrity, and availability (C:H/I:H/A:H) of the system, as indicated by the CVSS 3.1 score of 7.8. The attack vector is local (AV:L), meaning the attacker must have some level of access to the device to exploit the flaw. The scope is unchanged (S:U), so the impact is limited to the vulnerable component. The vulnerability could allow an attacker to read sensitive memory areas, cause crashes, or potentially execute arbitrary code, depending on the exploitation method. No patches or known exploits are currently available, but the vulnerability is publicly disclosed and assigned a CVE ID. The affected components are integral to wireless connectivity in many mobile and IoT devices, making this a significant security concern for device manufacturers and end users relying on Qualcomm Snapdragon platforms.

The impact of CVE-2025-47368 is substantial due to the high severity and the critical role of affected Qualcomm Snapdragon components in wireless communication. Exploitation could lead to unauthorized disclosure of sensitive information, system crashes, or privilege escalation, potentially allowing attackers to gain control over affected devices. This can disrupt device availability and compromise user data confidentiality and integrity. Since these components are embedded in a wide range of smartphones, tablets, and IoT devices globally, the vulnerability poses a risk to both consumer privacy and enterprise security. Organizations deploying devices with these Snapdragon modules may face operational disruptions, data breaches, and increased attack surface for lateral movement within networks. The local attack vector limits remote exploitation but does not eliminate risk in environments where attackers can gain local access, such as through malicious apps or insider threats.

To mitigate CVE-2025-47368, organizations and device manufacturers should: 1) Monitor Qualcomm’s advisories closely for official patches or firmware updates addressing this vulnerability and apply them promptly. 2) Restrict access to MCDM IOCTL interfaces to trusted processes only, employing strict access controls and sandboxing techniques to prevent unauthorized local access. 3) Implement runtime protections such as memory protection mechanisms and address space layout randomization (ASLR) where supported by the platform to reduce exploitation likelihood. 4) Conduct thorough security audits of applications and services that interact with the affected Snapdragon components to detect and block attempts to exploit the vulnerability. 5) For enterprise environments, enforce device usage policies limiting installation of untrusted applications and monitor for anomalous local activity indicative of exploitation attempts. 6) Engage in threat hunting and endpoint detection to identify any signs of exploitation, despite no known exploits currently existing. 7) Educate users about the risks of installing unverified software that could leverage local vulnerabilities. These steps go beyond generic patching advice by focusing on access control, runtime defenses, and proactive detection.