Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious microcode, potentially resulting in loss of integrity of x86 instruction execution, loss of confidentiality and integrity of data in x8
Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious microcode, potentially resulting in loss of integrity of x86 instruction execution, loss of confidentiality and integrity of data in x86 CPU privileged context and compromise of SMM execution environment.
| Vendor | Product | Versions |
|---|---|---|
| AMD | AMD EPYC™ 7001 Series | NaplesPI 1.0.0.P |
| AMD | AMD EPYC™ 7002 Series | RomePI 1.0.0.L |
| AMD | AMD EPYC™ 7003 Series | MilanPI 1.0.0.F |
| AMD | AMD EPYC™ 9004 Series | Genoa 1.0.0.E |
| AMD | AMD EPYC™ 4004 Series | ComboAM5PI1.0.0.a, ComboAM5PI1.1.0.3c, ComboAM5PI1.2.0.3 |
| AMD | AMD EPYC™ 9005 Series | TurinPI 1.0.0.4 |
| AMD | AMD Instinct™ MI300A | MI300PI_SR5 1.0.0.8 |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors | ComboAM4v2PI 1.2.0.E |
| AMD | AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics | ComboAM4v2PI 1.2.0.E |
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | ComboAM4PI 1.0.0.D, ComboAM4v2PI 1.2.0.E |
| AMD | AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics | ComboAM4PI 1.0.0.D, ComboAM4v2PI 1.2.0.E |
| AMD | AMD Ryzen™ 7000 Series Desktop Processors | ComboAM5PI 1.0.0.a, ComboAM5PI 1.1.0.3c, ComboAM5PI 1.2.0.3 |
| AMD | AMD Ryzen™ 4000 Series Desktop Processor with Radeon™ Graphics | ComboAM4v2PI 1.2.0.E |
| AMD | AMD Ryzen™ 8000 Series Processor with Radeon™ Graphics | ComboAM5PI 1.1.0.3c, ComboAM5PI 1.2.0.3 |
| AMD | AMD Ryzen™ 9000 Series Desktop Processors | ComboAM5PI 1.2.0.3c |
| AMD | AMD Ryzen™ Threadripper™ 3000 Series Processors | CastlePeakPI-SP3r3 1.0.0.E |
| AMD | AMD Ryzen™ Threadripper™ PRO 7000 WX | Series Processors — StormPeakPI-SP6 1.0.0.1k, StormPeakPI-SP6 1.1.0.0i |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors | ChagallWSPI-sWRX8 1.0.0.B, CastlePeakWSPI-sWRX8 1.0.0.g |
| AMD | AMD Ryzen™ Threadripper™ PRO 5000WX | Series Desktop Processors — ChagallWSPI-sWRX8 1.0.0.B |
| AMD | AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | PicassoPI-FP5 1.0.1.2b |
| AMD | AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics | PicassoPI-FP5 1.0.1.2b |
| AMD | AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics | RenoirPI-FP6 1.0.0.Eb |
| AMD | AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics | CezannePI-FP6 1.0.1.1b |
| AMD | AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics | MendocinoPI-FT6 1.0.0.7b |
| AMD | AMD Ryzen™ 6000 Series Processor with Radeon™ Graphics | RembrandtPI-FP7 1.0.0.Bb |
| AMD | AMD Ryzen™ 7035 Series Processor with Radeon™ Graphics | RembrandtPI-FP7 1.0.0.Bb |
| AMD | AMD Ryzen™ 7000 Series Processors with Radeon™ Graphics | CezannePI-FP6 1.0.1.1b |
| AMD | AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics | PhoenixPI-FP8-FP7 1.2.0.0 |
| AMD | AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics | PhoenixPI-FP8-FP7 1.2.0.0 |
| AMD | AMD Ryzen™ 7045 Series Mobile Processors | DragonRangeFL1 1.0.0.3g |
| AMD | AMD Ryzen™ AI 300 Series | StrixKrakenPI-FP8_1.1.0.0b |
| AMD | AMD Ryzen™ AI Max + | StrixHaloPI-FP11_1.0.0.1 |
| AMD | AMD Ryzen™ 9000HX Series Mobile Processors | FireRangeFL1PI 1.0.0.0a |
| AMD | AMD EPYC™ Embedded 3000 | SnowyOwl PI 1.1.0.E |
| AMD | AMD EPYC™ Embedded 7002 | EmbRomePI-SP3 1.0.0.D |
| AMD | AMD EPYC™ Embedded 7003 | EmbMilan PI-SP3 1.0.0.A |
| AMD | AMD EPYC™ Embedded 8004 | EmbGenoaPI-SP5 1.0.0.9 |
| AMD | AMD EPYC™ Embedded 9004 | EmbGenoaPI-SP5 1.0.0.9 |
| AMD | AMD EPYC™ Embedded 97X4 | EmbGenoaPI-SP5 1.0.0.9 |
| AMD | AMD Ryzen™ Embedded R1000 | EmbeddedPI-FP5 1.2.0.F |
| AMD | AMD Ryzen™ Embedded R2000 | EmbeddedR2KPI 1.0.0.5 |
| AMD | AMD Ryzen™ Embedded 5000 | EmbAM4PI 1.0.0.7 |
| AMD | AMD Ryzen™ Embedded 7000 | EmbeddedAM5PI 1.0.0.3 |
| AMD | AMD Ryzen™ Embedded V1000 | EmbeddedPI-FP5 1.2.0.F |
| AMD | AMD Ryzen™Embedded V2000 | EmbeddedPI-FP6 1.0.0.B |
| AMD | AMD Ryzen™Embedded V3000 | EmbeddedPI-FP7R2 1.0.0.C |
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.