Incomplete cleanup in the ASP may expose the Master Encryption Key (MEK) to a privileged…
Priority LOW 9CWE-459Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Incomplete cleanup in the ASP may expose the Master Encryption Key (MEK) to a privileged attacker with access to the BIOS menu or UEFI shell and a memory exfiltration vulnerability, potentially resulting in loss of confidentiality.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00096 0th percentileScored 2026-11-07
Fix Fixed AMD EPYC™ 9004 Series Processors (AMD): GenoaPI 1.0.0.4AMD Ryzen™ 3000 Series Desktop Processors (AMD): ComboAM4V1 1.0.0.A, ComboAM4V2 1.2.0.A+23 more products
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 | AMD EPYC™ 9004 Series Processors | — | GenoaPI 1.0.0.4 | Patch available | CNA |
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | — | ComboAM4V1 1.0.0.A, ComboAM4V2 1.2.0.A | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors | — | ComboAM4V2 1.2.0.A | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics | — | ComboAM4V2 1.2.0.A | Patch available | CNA |
| AMD | AMD Ryzen™ 7000 Series Desktop Processors | — | ComboAM5 1.0.0.6 | Patch available | CNA |
| AMD | AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics | — | ComboAM4V2 1.2.0.A, ComboAM4V1 1.0.0.A | Patch available | CNA |
| AMD | AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics | — | ComboAM4V2 1.2.0.A | Patch available | CNA |
| AMD | AMD Ryzen™ Threadripper™ 3000 Series Processors | — | CastlePeakPI-SP3r3 1.0.0.9 | Patch available | CNA |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors | — | ChagallWSPI-sWRX8 1.0.0.6, CastlePeakWSPI-sWRX8 1.0.0.B | Patch available | CNA |
| AMD | AMD Ryzen™ Threadripper™ PRO 5000WX Processors | — | ChagallWSPI-sWRX8 1.0.0.6 | Patch available | CNA |
| AMD | AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | — | PicassoPI-FP5 1.0.0.F | Patch available | CNA |
| AMD | AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | — | PollockPI-FT5 1.0.0.5 | Patch available | CNA |
| AMD | AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics | — | PicassoPI-FP5 1.0.0.F | Patch available | CNA |
| AMD | AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics | — | RenoirPI-FP6 1.0.0.C | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | — | CezannePI-FP6 1.0.0.E | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | — | CezannePI-FP6 1.0.0.E | Patch available | CNA |
| AMD | AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics | — | MendocinoPI-FT6 1.0.0.4 | Patch available | CNA |
| AMD | AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics | — | RembrandtPI-FP7 1.0.0.8 | Patch available | CNA |
| AMD | AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics | — | RembrandtPI-FP7 1.0.0.8 | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics | — | CezannePI-FP6 1.0.0.E | Patch available | CNA |
| AMD | AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics | — | CezannePI-FP6 1.0.0.E | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded R1000 Series Processors | — | EmbeddedPI-FP5 1.2.0.A | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded R2000 Series Processors | — | EmbeddedR2KPI-FP5 1.0.0.2 | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded 5000 Series Processors | — | EmbAM4PI 1.0.0.3 | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded 7000 Series Processors | — | EmbeddedAM5PI 1.0.0.0 | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded V1000 Series Processors | various | — | No fix listed | CNA |
| AMD | AMD Ryzen™ Embedded V2000 Series Processors | — | EmbeddedPI-FP6 1.0.0.8 | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded V3000 Series Processors | — | EmbeddedPI-FP7r2 1.0.0.5 | Patch available | CNA |
- AMD EPYC™ 9004 Series Processors VendorAMD Affected — Fixed in GenoaPI 1.0.0.4 Patch available CNA
- AMD Ryzen™ 3000 Series Desktop Processors VendorAMD Affected — Fixed in ComboAM4V1 1.0.0.A, ComboAM4V2 1.2.0.A Patch available CNA
- AMD Ryzen™ 5000 Series Desktop Processors VendorAMD Affected — Fixed in ComboAM4V2 1.2.0.A Patch available CNA
- AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics VendorAMD Affected — Fixed in ComboAM4V2 1.2.0.A Patch available CNA
- AMD Ryzen™ 7000 Series Desktop Processors VendorAMD Affected — Fixed in ComboAM5 1.0.0.6 Patch available CNA
- AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics VendorAMD Affected — Fixed in ComboAM4V2 1.2.0.A, ComboAM4V1 1.0.0.A Patch available CNA
- AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics VendorAMD Affected — Fixed in ComboAM4V2 1.2.0.A Patch available CNA
- AMD Ryzen™ Threadripper™ 3000 Series Processors VendorAMD Affected — Fixed in CastlePeakPI-SP3r3 1.0.0.9 Patch available CNA
- AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors VendorAMD Affected — Fixed in ChagallWSPI-sWRX8 1.0.0.6, CastlePeakWSPI-sWRX8 1.0.0.B Patch available CNA
- AMD Ryzen™ Threadripper™ PRO 5000WX Processors VendorAMD Affected — Fixed in ChagallWSPI-sWRX8 1.0.0.6 Patch available CNA
- AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in PicassoPI-FP5 1.0.0.F Patch available CNA
- AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in PollockPI-FT5 1.0.0.5 Patch available CNA
- AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics VendorAMD Affected — Fixed in PicassoPI-FP5 1.0.0.F Patch available CNA
- AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in RenoirPI-FP6 1.0.0.C Patch available CNA
- AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.E Patch available CNA
- AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.E Patch available CNA
- AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in MendocinoPI-FT6 1.0.0.4 Patch available CNA
- AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in RembrandtPI-FP7 1.0.0.8 Patch available CNA
- AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in RembrandtPI-FP7 1.0.0.8 Patch available CNA
- AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.E Patch available CNA
- AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.E Patch available CNA
- AMD Ryzen™ Embedded R1000 Series Processors VendorAMD Affected — Fixed in EmbeddedPI-FP5 1.2.0.A Patch available CNA
- AMD Ryzen™ Embedded R2000 Series Processors VendorAMD Affected — Fixed in EmbeddedR2KPI-FP5 1.0.0.2 Patch available CNA
- AMD Ryzen™ Embedded 5000 Series Processors VendorAMD Affected — Fixed in EmbAM4PI 1.0.0.3 Patch available CNA
- AMD Ryzen™ Embedded 7000 Series Processors VendorAMD Affected — Fixed in EmbeddedAM5PI 1.0.0.0 Patch available CNA
- AMD Ryzen™ Embedded V1000 Series Processors VendorAMD Affected various Fixed in — No fix listed CNA
- AMD Ryzen™ Embedded V2000 Series Processors VendorAMD Affected — Fixed in EmbeddedPI-FP6 1.0.0.8 Patch available CNA
- AMD Ryzen™ Embedded V3000 Series Processors VendorAMD Affected — Fixed in EmbeddedPI-FP7r2 1.0.0.5 Patch available CNA
Remediation
- Fix · CNA AMD EPYC™ 9004 Series Processors (AMD) Fixed in GenoaPI 1.0.0.4
- Fix · CNA AMD Ryzen™ 3000 Series Desktop Processors (AMD) Fixed in ComboAM4V1 1.0.0.A, ComboAM4V2 1.2.0.A
- Fix · CNA AMD Ryzen™ 5000 Series Desktop Processors (AMD) Fixed in ComboAM4V2 1.2.0.A
- Fix · CNA AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics (AMD) Fixed in ComboAM4V2 1.2.0.A
- Fix · CNA AMD Ryzen™ 7000 Series Desktop Processors (AMD) Fixed in ComboAM5 1.0.0.6
- Fix · CNA AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics (AMD) Fixed in ComboAM4V2 1.2.0.A, ComboAM4V1 1.0.0.A
- Fix · CNA AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics (AMD) Fixed in ComboAM4V2 1.2.0.A
- Fix · CNA AMD Ryzen™ Threadripper™ 3000 Series Processors (AMD) Fixed in CastlePeakPI-SP3r3 1.0.0.9
- Fix · CNA AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors (AMD) Fixed in ChagallWSPI-sWRX8 1.0.0.6, CastlePeakWSPI-sWRX8 1.0.0.B
- Fix · CNA AMD Ryzen™ Threadripper™ PRO 5000WX Processors (AMD) Fixed in ChagallWSPI-sWRX8 1.0.0.6
- Fix · CNA AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in PicassoPI-FP5 1.0.0.F
- Fix · CNA AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in PollockPI-FT5 1.0.0.5
- Fix · CNA AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics (AMD) Fixed in PicassoPI-FP5 1.0.0.F
- Fix · CNA AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in RenoirPI-FP6 1.0.0.C
- Fix · CNA AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.E
- Fix · CNA AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.E
- Fix · CNA AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics (AMD) Fixed in MendocinoPI-FT6 1.0.0.4
- Fix · CNA AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics (AMD) Fixed in RembrandtPI-FP7 1.0.0.8
- Fix · CNA AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics (AMD) Fixed in RembrandtPI-FP7 1.0.0.8
- Fix · CNA AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.E
- Fix · CNA AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.E
- Fix · CNA AMD Ryzen™ Embedded R1000 Series Processors (AMD) Fixed in EmbeddedPI-FP5 1.2.0.A
- Fix · CNA AMD Ryzen™ Embedded R2000 Series Processors (AMD) Fixed in EmbeddedR2KPI-FP5 1.0.0.2
- Fix · CNA AMD Ryzen™ Embedded 5000 Series Processors (AMD) Fixed in EmbAM4PI 1.0.0.3
- Fix · CNA AMD Ryzen™ Embedded 7000 Series Processors (AMD) Fixed in EmbeddedAM5PI 1.0.0.0
- Fix · CNA AMD Ryzen™ Embedded V2000 Series Processors (AMD) Fixed in EmbeddedPI-FP6 1.0.0.8
- Fix · CNA AMD Ryzen™ Embedded V3000 Series Processors (AMD) Fixed in EmbeddedPI-FP7r2 1.0.0.5
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics, AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics and 24 more products — amd.com/en/resources/product-security/bulletin/amd-sb-3003.…
8 records Highest priority Priority MEDIUM 1 MEDIUM, 7 LOW
Other records, highest priority first
- TI-2023-07040 Improper re-initialization of IOMMU during the DRTM event may permit an untrusted…Priority MEDIUM 49
- TI-2021-08171 Out-of-bounds write in AMD EPYC™ 7001 Series ProcessorsPriority LOW 37
- TI-2023-07029 Time-of-check time-of-use race condition in AMD EPYC™ 7001 ProcessorsPriority LOW 34
Timeline
- 2026-10-02 Threatist record created from CVE-2023-20518
- 2026-10-03 Alias added: GHSA-rj66-wvw5-rcvp
References
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-2023-20518 · CVE Program
- CVE-2023-20518 · NVD
- FIRST EPSS
- GHSA-rj66-wvw5-rcvp · GitHub Advisory Database · CC BY 4.0
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