AMD Platform Management Framework Driver CVE-2025-52540

Exploitation requires the AMD Platform Management Framework (PMF) driver to be installed and loaded on systems running affected AMD Ryzen 6000/7000/8000 series processors. The attacker must have low-privilege local access (PR:L) to execute code on the target system with ability to interact with the PMF kernel driver through IOCTLs or system calls. This is not remote exploitation (AV:L) and requires prior compromise of user-level credentials through phishing, stolen credentials, or other initial access methods. The vulnerability affects default driver installations with no special configuration required. Attack complexity is low (AC:L) with no user interaction needed (UI:N) once local access is established. Exploitation is limited to Windows and Linux systems where AMD chipset drivers including the PMF component are installed - does not affect systems using only generic OS-provided drivers or systems without PMF driver deployment.

This represents a moderate real-world risk as a local privilege escalation vector in post-exploitation scenarios. The CVSS 4.0 score of 8.5 reflects high impact (VC:H/VI:H/VA:H) with local attack vector requiring low privileges (AV:L/PR:L/AC:L), meaning an attacker needs initial user-level access but can then escalate to kernel/administrator privileges. No EPSS score, KEV listing, or public exploit code is reported, indicating this is not currently being exploited at scale. The vulnerability's value lies primarily in targeted attack chains where adversaries have already gained initial access (phishing, supply chain, physical access) and need privilege escalation to persist or move laterally. The attack complexity is low with no user interaction required once the attacker has local access, making exploitation straightforward for skilled adversaries. Patch availability from AMD (chipset driver 7.06.02.123) significantly reduces risk for organizations maintaining current driver versions, though the widespread deployment of affected Ryzen processors in enterprise laptops and embedded systems creates a large vulnerable surface if unpatched.

An attacker gains initial user-level access to a corporate laptop running an AMD Ryzen 7040 processor through a phishing attack. With low-privilege credentials, they execute a malicious program that interacts with the AMD PMF driver through documented or reverse-engineered IOCTL interfaces, passing crafted input that triggers the improper validation flaw. The driver writes attacker-controlled data beyond allocated buffer boundaries, corrupting adjacent kernel memory structures. By carefully crafting the overflow data, the attacker overwrites function pointers or security tokens, redirecting kernel execution flow to injected shellcode. This grants SYSTEM/root privileges, allowing the attacker to disable security controls, install persistent backdoors, and access sensitive corporate data.