- AMD Ryzen EPYC vulnerability mitigation is necessary due to the newly discovered “Sinkclose” vulnerability affecting millions of AMD CPUs worldwide, potentially allowing unauthorized code execution in sensitive System Management Mode.
- The Sinkclose vulnerability has been present for over a decade and was recently disclosed at the Defcon hacker conference by security firm IOActive.
- Hackers can exploit this vulnerability using undetectable bootkit malware, making it difficult to remove even after a system wipe.
- AMD has acknowledged the issue, providing a security bulletin and firmware patches for affected processors, including Ryzen 3000 and newer, along with 1st Gen EPYC and above.
- While mitigation is available for most Ryzen and EPYC CPUs, users may need to perform complex hardware-based updates, and an upcoming BIOS update is expected to address the remaining vulnerabilities for consumers.
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