Just one instruction on AMD's 2015-era CPUs cracks open secret memory areas and gives full hardware-level control — exploit for 15h and 16h chip families gets you access to Platform Security Processor, microcode, and System Management Interface
- ID
- 14155
- Status
- summarized
- Published
- 14 Aug 2026, 5:33 PM
- Fetched
- 14 Aug 2026, 9:25 PM
- Provider
- Tom's Hardware
- Category
- technology
- Original URL
- https://www.tomshardware.com/tech-industry/cyber-security/just-one-instruction-on-amds-2015-era-cpus-gets-you-access-to-platform-security-processor-microcode-and-system-management-interface-exploit-for-15h-and-16h-chip-families-cracks-open-secret-memory-areas
- Source URL
- https://www.tomshardware.com/feeds/all
Summary
- Score
- 2.5
- Created
- 14 Aug 2026, 9:25 PM
- Tags
- Audience
- developers
What happened
A single-instruction exploit targeting AMD's 2015-era 15h and 16h CPU families can unlock secret memory areas, granting access to the Platform Security Processor, microcode, and System Management Interface for full hardware-level control. The article text itself is mostly site boilerplate with no additional technical detail beyond the headline.
Why it matters
Only relevant if you operate infrastructure on AMD 15h/16h-era CPUs (roughly 2011-2017). If you do, this is a physical-access or privileged-instruction escalation path into secure coprocessor and microcode regions, meaning standard OS-level patching may be insufficient. For cloud or modern-hardware users, no action needed.
Discussion angle
Whether anyone in the community is still running workloads on AMD 15h/16h-era bare metal or colo, and what decommission or mitigation looks like when the vulnerability is below the OS layer.