CVE-2023-20555

No fix known EPSS <1%

Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in SMM.

Published 2023-08-08 · CVE record · OSV

Products: AMD Ryzen™ 3000 Series Desktop Processors “Matisse” AM4, AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4, AMD Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4, AMD Ryzen™ 7000 Series Processors “Raphael”, AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso”, AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics “Renoir” FP5, AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” FP5, AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”, AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Picasso”, AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics “Renoir” FP6, AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”, AMD Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”, AMD Ryzen™ 6000 Series Mobile Processors "Rembrandt", AMD Ryzen™ 7030 Series Mobile Processors “Barcelo”, AMD Ryzen™ 7020 Series Mobile Processors “Mendocino”, amd ryzen_3000_series_desktop_processors, amd ryzen_5000_series_desktop_processors, amd ryzen_7000_series_desktop_processors, amd athlon_3000g, amd ryzen_4000_series_desktop_processors_with_radeon_graphics