CVE-2023-20577

No fix known EPSS <1%CVSS 7.4

A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.

Published 2026-09-02 · CVE record · OSV

Products: 2nd Gen AMD EPYC™ Processors, 3rd Gen AMD EPYC™ Processors, 4th Gen AMD EPYC™ Processors, AMD Instinct™ MI300A, AMD Ryzen™ 3000 Series Desktop Processors, AMD Ryzen™ 5000 Series Desktop Processors, AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics, AMD Ryzen™ 7000 Series Processors, AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics, AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics, AMD Ryzen™ Threadripper™ 3000 Series Processors, AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors, AMD Ryzen™ Threadripper™ PRO 5000WX Processors, AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics, AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics, AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics, AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics, AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics, AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics, AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics, AMD Ryzen™ 7045 Series Mobile Processors, AMD EPYC™ Embedded 3000, AMD EPYC™ Embedded 7002, AMD EPYC™ Embedded 7003, AMD EPYC™ Embedded 9003, AMD Ryzen™ Embedded R1000, AMD Ryzen™ Embedded R2000, AMD Ryzen™ Embedded 5000, AMD Ryzen™ Embedded V1000, AMD Ryzen™ Embedded V2000, AMD Ryzen™Embedded V3000