CVE-2024-36353 is a vulnerability categorized under CWE-459 (Incomplete Cleanup) found in AMD Ryzen 4000 Series Mobile Processors with integrated Radeon Graphics. The issue arises from insufficient clearing of the GPU's global memory after a process terminates, which allows a malicious process running on the same GPU to read residual data left behind by previous processes. This leftover data can include sensitive information, leading to a breach of confidentiality. The vulnerability requires that the attacker has local privileges to execute code on the GPU, but does not require user interaction. The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) indicates that the attack is local, requires low complexity, low privileges, no user interaction, and impacts confidentiality with a scope change, but does not affect integrity or availability. No patches or known exploits are currently available, but the vulnerability poses a risk in multi-tenant or shared GPU environments where different users or processes run concurrently. This vulnerability is particularly relevant for laptops and mobile workstations using AMD Ryzen 4000 mobile processors with Radeon graphics, which are common in enterprise and consumer devices. The incomplete memory cleanup could be exploited to leak sensitive data such as cryptographic keys, passwords, or proprietary information from other GPU processes.

For European organizations, the primary impact of CVE-2024-36353 is the potential loss of confidentiality of sensitive data processed on affected AMD Ryzen 4000 mobile platforms. This is especially critical for sectors such as finance, healthcare, research, and government agencies where sensitive or regulated data is handled. The vulnerability could allow malicious local users or malware to extract residual data from GPU memory, potentially exposing intellectual property, personal data, or cryptographic material. Although the attack requires local access and privileges, the widespread use of these processors in laptops and mobile devices increases the attack surface, particularly in environments with shared or multi-user GPU usage. The vulnerability does not affect system integrity or availability, but the confidentiality breach could lead to compliance violations under GDPR and damage to organizational reputation. The lack of current patches means organizations must rely on mitigating controls until AMD releases updates.

To mitigate CVE-2024-36353, European organizations should implement strict access controls to limit local user privileges and prevent unauthorized code execution on devices with affected AMD Ryzen 4000 mobile processors. Employ endpoint security solutions that monitor and restrict GPU usage and detect anomalous local activity. Where possible, avoid multi-tenant or shared GPU usage scenarios, especially in sensitive environments. Organizations should also enforce full disk encryption and application-level encryption to reduce the impact of potential data leaks. Regularly update system firmware and drivers from AMD as patches become available. Additionally, consider isolating sensitive workloads on hardware platforms not affected by this vulnerability or using virtualized environments with strong GPU isolation. Security teams should audit and monitor for unusual GPU memory access patterns and educate users on the risks of running untrusted code locally.