CVE-2025-58409 is a security vulnerability classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) found in the Imagination Technologies Graphics Device Driver Kit (DDK). The flaw allows software running without elevated privileges to perform improper GPU system calls that subvert the GPU hardware, enabling it to write to arbitrary physical memory pages. This is achieved by exploiting insufficient validation or boundary checks within the GPU driver’s handling of memory buffers. Under certain conditions, this can lead to corruption of data pages not allocated by the GPU driver, including memory pages used by the kernel and other drivers, potentially altering their behavior and compromising system integrity. The attack vector does not require user interaction or authentication, and the vulnerability affects multiple released versions of the Graphics DDK (1.15 RTM, 1.17 RTM, 1.18 RTM, and 23.2 RTM). Despite the low CVSS score of 3.5, which reflects a low impact on confidentiality, integrity, and availability due to the attack vector being physical access (AV:P) and no privileges required (PR:N), the ability to write arbitrary physical memory is a serious concern. No known exploits are currently reported in the wild, and no official patches have been published yet. The vulnerability primarily impacts systems using Imagination Technologies GPUs, which are commonly found in embedded systems, mobile devices, and specialized hardware platforms.

For European organizations, the impact of CVE-2025-58409 depends largely on the deployment of affected Imagination Technologies Graphics DDK versions within their infrastructure. Organizations relying on embedded systems, industrial control systems, or specialized hardware that incorporate these GPUs could face risks of kernel memory corruption leading to system instability, unauthorized behavior modification, or potential privilege escalation if combined with other vulnerabilities. Although the CVSS score is low, the ability to corrupt arbitrary physical memory could enable attackers to bypass security controls or disrupt critical operations, especially in sectors like manufacturing, automotive, telecommunications, and defense where embedded GPUs are prevalent. The lack of required privileges or user interaction lowers the barrier for exploitation in physically accessible environments, such as on-premises devices or edge computing nodes. However, the absence of known exploits and patches reduces immediate risk but underscores the need for proactive mitigation. The threat is less relevant for typical enterprise desktop or server environments unless they specifically use the affected GPU drivers.

1. Restrict physical and local access to systems running Imagination Technologies GPUs to prevent unauthorized exploitation. 2. Implement strict access controls and monitoring on GPU driver interfaces to detect anomalous GPU system calls or memory operations. 3. Maintain an inventory of hardware and software to identify systems using affected Graphics DDK versions (1.15 RTM, 1.17 RTM, 1.18 RTM, 23.2 RTM). 4. Engage with Imagination Technologies for timely security advisories and patches; apply updates promptly once available. 5. Employ hardware-based security features such as IOMMU (Input-Output Memory Management Unit) to restrict GPU access to physical memory regions. 6. Use endpoint detection and response (EDR) solutions capable of monitoring GPU driver behavior and memory integrity. 7. For critical systems, consider isolating or segmenting devices with affected GPUs to limit potential attack surface. 8. Conduct regular security audits and penetration testing focusing on GPU driver interfaces and memory management.