Stack-based buffer overflow in AMD 2nd Gen AMD EPYC™ Processors
Priority LOW 33CWE-121Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00152 4th percentileScored 2026-11-07
Fix Fixed 2nd Gen AMD EPYC™ Processors (AMD): RomePI 1.0.0.H3rd Gen AMD EPYC™ Processors (AMD): MilanPI 1.0.0.C+32 more products
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| AMD | 2nd Gen AMD EPYC™ Processors | — | RomePI 1.0.0.H | Patch available | CNA |
| AMD | 3rd Gen AMD EPYC™ Processors | — | MilanPI 1.0.0.C | Patch available | CNA |
| AMD | 4th Gen AMD EPYC™ Processors | — | GenoaPI 1.0.0.8 | Patch available | CNA |
| AMD | AMD Instinct™ MI300A | — | MI300 SR5 PI 1.0.0.1 | Patch available | CNA |
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | — | ComboAM4v2 1.2.0.B, ComboAM4 1.0.0.B | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors | — | ComboAM4v2 1.2.0.B | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics | — | ComboAM4v2 1.2.0.B | Patch available | CNA |
| AMD | AMD Ryzen™ 7000 Series Processors | — | ComboAM5 1.0.0.7b | Patch available | CNA |
| AMD | AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics | — | ComboAM4v2 1.2.0.B, ComboAM4 1.0.0.B | Patch available | CNA |
| AMD | AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics | — | ComboAM4v2 1.2.0.B | Patch available | CNA |
| AMD | AMD Ryzen™ Threadripper™ 3000 Series Processors | — | CastlePeakPI-SP3r3 1.0.0.A | Patch available | CNA |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors | — | ChagallWSPI-sWRX8 1.0.0.7, CastlePeakWSPI-sWRX8 1.0.0.C | Patch available | CNA |
| AMD | AMD Ryzen™ Threadripper™ PRO 5000WX Processors | — | ChagallWSPI-sWRX8 1.0.0.7 | Patch available | CNA |
| AMD | AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | — | PicassoPI-FP5 1.0.1.0 | Patch available | CNA |
| AMD | AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | — | PollockPI-FT5 1.0.0.6 | Patch available | CNA |
| AMD | AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics | — | PicassoPI-FP5 1.0.1.0 | Patch available | CNA |
| AMD | AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics | — | RenoirPI-FP6 1.0.0.D | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | — | CezannePI-FP6 1.0.0.F | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | — | CezannePI-FP6 1.0.0.F | Patch available | CNA |
| AMD | AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics | — | MendocinoPI-FT6 1.0.0.6 | Patch available | CNA |
| AMD | AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics | — | RembrandtPI-FP7 1.0.0.9b | Patch available | CNA |
| AMD | AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics | — | RembrandtPI-FP7 1.0.0.9b | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics | — | CezannePI-FP6 1.0.0.F | Patch available | CNA |
| AMD | AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics | — | CezannePI-FP6 1.0.0.F | Patch available | CNA |
| AMD | AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics | — | PhoenixPI-FP8-FP7 1.0.0.2 | Patch available | CNA |
| AMD | AMD Ryzen™ 7045 Series Mobile Processors | — | DragonRangeFL1PI 1.0.0.3a | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 3000 | — | Snowyowl PI 1.1.0.B | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 7002 | — | EmbRomePI-SP3 1.0.0.B | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 7003 | — | EmbMilanPI-SP3 1.0.0.8 | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 9003 | — | EmbGenoaPI-SP5 1.0.0.3 | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded R1000 | — | EmbeddedPI-FP5 1.2.0.A | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded R2000 | — | EmbeddedPI-FP5 1.0.0.2 | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded 5000 | — | EmbAM4PI 1.0.0.4 | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded V1000 | — | EmbeddedPI-FP5 1.2.0.A | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded V2000 | — | EmbeddedPI-FP6 1.0.0.9 | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded V3000 | — | EmbeddedPI-FP7r2 1.0.0.8 | Patch available | CNA |
- 2nd Gen AMD EPYC™ Processors VendorAMD Affected — Fixed in RomePI 1.0.0.H Patch available CNA
- 3rd Gen AMD EPYC™ Processors VendorAMD Affected — Fixed in MilanPI 1.0.0.C Patch available CNA
- 4th Gen AMD EPYC™ Processors VendorAMD Affected — Fixed in GenoaPI 1.0.0.8 Patch available CNA
- AMD Instinct™ MI300A VendorAMD Affected — Fixed in MI300 SR5 PI 1.0.0.1 Patch available CNA
- AMD Ryzen™ 3000 Series Desktop Processors VendorAMD Affected — Fixed in ComboAM4v2 1.2.0.B, ComboAM4 1.0.0.B Patch available CNA
- AMD Ryzen™ 5000 Series Desktop Processors VendorAMD Affected — Fixed in ComboAM4v2 1.2.0.B Patch available CNA
- AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics VendorAMD Affected — Fixed in ComboAM4v2 1.2.0.B Patch available CNA
- AMD Ryzen™ 7000 Series Processors VendorAMD Affected — Fixed in ComboAM5 1.0.0.7b Patch available CNA
- AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics VendorAMD Affected — Fixed in ComboAM4v2 1.2.0.B, ComboAM4 1.0.0.B Patch available CNA
- AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics VendorAMD Affected — Fixed in ComboAM4v2 1.2.0.B Patch available CNA
- AMD Ryzen™ Threadripper™ 3000 Series Processors VendorAMD Affected — Fixed in CastlePeakPI-SP3r3 1.0.0.A Patch available CNA
- AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors VendorAMD Affected — Fixed in ChagallWSPI-sWRX8 1.0.0.7, CastlePeakWSPI-sWRX8 1.0.0.C Patch available CNA
- AMD Ryzen™ Threadripper™ PRO 5000WX Processors VendorAMD Affected — Fixed in ChagallWSPI-sWRX8 1.0.0.7 Patch available CNA
- AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in PicassoPI-FP5 1.0.1.0 Patch available CNA
- AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in PollockPI-FT5 1.0.0.6 Patch available CNA
- AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics VendorAMD Affected — Fixed in PicassoPI-FP5 1.0.1.0 Patch available CNA
- AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in RenoirPI-FP6 1.0.0.D Patch available CNA
- AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.F Patch available CNA
- AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.F Patch available CNA
- AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in MendocinoPI-FT6 1.0.0.6 Patch available CNA
- AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in RembrandtPI-FP7 1.0.0.9b Patch available CNA
- AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in RembrandtPI-FP7 1.0.0.9b Patch available CNA
- AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.F Patch available CNA
- AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.F Patch available CNA
- AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in PhoenixPI-FP8-FP7 1.0.0.2 Patch available CNA
- AMD Ryzen™ 7045 Series Mobile Processors VendorAMD Affected — Fixed in DragonRangeFL1PI 1.0.0.3a Patch available CNA
- AMD EPYC™ Embedded 3000 VendorAMD Affected — Fixed in Snowyowl PI 1.1.0.B Patch available CNA
- AMD EPYC™ Embedded 7002 VendorAMD Affected — Fixed in EmbRomePI-SP3 1.0.0.B Patch available CNA
- AMD EPYC™ Embedded 7003 VendorAMD Affected — Fixed in EmbMilanPI-SP3 1.0.0.8 Patch available CNA
- AMD EPYC™ Embedded 9003 VendorAMD Affected — Fixed in EmbGenoaPI-SP5 1.0.0.3 Patch available CNA
- AMD Ryzen™ Embedded R1000 VendorAMD Affected — Fixed in EmbeddedPI-FP5 1.2.0.A Patch available CNA
- AMD Ryzen™ Embedded R2000 VendorAMD Affected — Fixed in EmbeddedPI-FP5 1.0.0.2 Patch available CNA
- AMD Ryzen™ Embedded 5000 VendorAMD Affected — Fixed in EmbAM4PI 1.0.0.4 Patch available CNA
- AMD Ryzen™ Embedded V1000 VendorAMD Affected — Fixed in EmbeddedPI-FP5 1.2.0.A Patch available CNA
- AMD Ryzen™ Embedded V2000 VendorAMD Affected — Fixed in EmbeddedPI-FP6 1.0.0.9 Patch available CNA
- AMD Ryzen™ Embedded V3000 VendorAMD Affected — Fixed in EmbeddedPI-FP7r2 1.0.0.8 Patch available CNA
Remediation
- Fix · CNA 2nd Gen AMD EPYC™ Processors (AMD) Fixed in RomePI 1.0.0.H
- Fix · CNA 3rd Gen AMD EPYC™ Processors (AMD) Fixed in MilanPI 1.0.0.C
- Fix · CNA 4th Gen AMD EPYC™ Processors (AMD) Fixed in GenoaPI 1.0.0.8
- Fix · CNA AMD Instinct™ MI300A (AMD) Fixed in MI300 SR5 PI 1.0.0.1
- Fix · CNA AMD Ryzen™ 3000 Series Desktop Processors (AMD) Fixed in ComboAM4v2 1.2.0.B, ComboAM4 1.0.0.B
- Fix · CNA AMD Ryzen™ 5000 Series Desktop Processors (AMD) Fixed in ComboAM4v2 1.2.0.B
- Fix · CNA AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics (AMD) Fixed in ComboAM4v2 1.2.0.B
- Fix · CNA AMD Ryzen™ 7000 Series Processors (AMD) Fixed in ComboAM5 1.0.0.7b
- Fix · CNA AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics (AMD) Fixed in ComboAM4v2 1.2.0.B, ComboAM4 1.0.0.B
- Fix · CNA AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics (AMD) Fixed in ComboAM4v2 1.2.0.B
- Fix · CNA AMD Ryzen™ Threadripper™ 3000 Series Processors (AMD) Fixed in CastlePeakPI-SP3r3 1.0.0.A
- Fix · CNA AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors (AMD) Fixed in ChagallWSPI-sWRX8 1.0.0.7, CastlePeakWSPI-sWRX8 1.0.0.C
- Fix · CNA AMD Ryzen™ Threadripper™ PRO 5000WX Processors (AMD) Fixed in ChagallWSPI-sWRX8 1.0.0.7
- Fix · CNA AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in PicassoPI-FP5 1.0.1.0
- Fix · CNA AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in PollockPI-FT5 1.0.0.6
- Fix · CNA AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics (AMD) Fixed in PicassoPI-FP5 1.0.1.0
- Fix · CNA AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in RenoirPI-FP6 1.0.0.D
- Fix · CNA AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.F
- Fix · CNA AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.F
- Fix · CNA AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics (AMD) Fixed in MendocinoPI-FT6 1.0.0.6
- Fix · CNA AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics (AMD) Fixed in RembrandtPI-FP7 1.0.0.9b
- Fix · CNA AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics (AMD) Fixed in RembrandtPI-FP7 1.0.0.9b
- Fix · CNA AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.F
- Fix · CNA AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.F
- Fix · CNA AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics (AMD) Fixed in PhoenixPI-FP8-FP7 1.0.0.2
- Fix · CNA AMD Ryzen™ 7045 Series Mobile Processors (AMD) Fixed in DragonRangeFL1PI 1.0.0.3a
- Fix · CNA AMD EPYC™ Embedded 3000 (AMD) Fixed in Snowyowl PI 1.1.0.B
- Fix · CNA AMD EPYC™ Embedded 7002 (AMD) Fixed in EmbRomePI-SP3 1.0.0.B
- Fix · CNA AMD EPYC™ Embedded 7003 (AMD) Fixed in EmbMilanPI-SP3 1.0.0.8
- Fix · CNA AMD EPYC™ Embedded 9003 (AMD) Fixed in EmbGenoaPI-SP5 1.0.0.3
- Fix · CNA AMD Ryzen™ Embedded R1000 (AMD) Fixed in EmbeddedPI-FP5 1.2.0.A
- Fix · CNA AMD Ryzen™ Embedded R2000 (AMD) Fixed in EmbeddedPI-FP5 1.0.0.2
- Fix · CNA AMD Ryzen™ Embedded 5000 (AMD) Fixed in EmbAM4PI 1.0.0.4
- Fix · CNA AMD Ryzen™ Embedded V1000 (AMD) Fixed in EmbeddedPI-FP5 1.2.0.A
- Fix · CNA AMD Ryzen™ Embedded V2000 (AMD) Fixed in EmbeddedPI-FP6 1.0.0.9
- Fix · CNA AMD Ryzen™ Embedded V3000 (AMD) Fixed in EmbeddedPI-FP7r2 1.0.0.8
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2023-20577
- 2026-10-03 Alias added: GHSA-hp78-wv22-mhmg
More AMD vulnerabilities
- TI-2026-36341 AI Tensor Engine for ROCm (AITER) 0.1.14 Unauthenticated RCE via MessageQueue.recv() Pickle Deserialization CVSS 4.0CRITICAL 9.2
- TI-2023-07046 Improper privilege management in AMD Radeon™ RX 5000 Series Graphics Cards CVSS 3.1HIGH 7.8
- TI-2023-04574 GPU kernel implementations susceptible to memory leak CVSS 3.1MEDIUM 6.5
- TI-2023-07042 Information disclosure through error messages in AMD Ryzen™ 3000 Series Desktop… CVSS 3.1MEDIUM 5.5
- TI-2023-23747 PVRIC (PowerVR Image Compression) on Imagination 2018 and later GPU devices offers… CVSS 3.1MEDIUM 5.3
- TI-2022-07839 Improper access control in System Management Mode (SMM) may allow an attacker to write to… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-20577 · CVE Program
- CVE-2023-20577 · NVD
- FIRST EPSS
- GHSA-hp78-wv22-mhmg · GitHub Advisory Database · CC BY 4.0
- CVE-2023-20577 · Red Hat security data · CC BY 4.0
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