Improper isolation of shared resources within the CPU operation cache on Zen 2-based…
Priority LOW 34CWE-1189Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.
Summary
Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level, potentially resulting in privilege escalation.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00287 21st percentileScored 2026-11-07
Fix Fixed AMD EPYC™ 7002 Series Processors (AMD): os kernelAMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics (AMD): RenoirPI-FP6_1.0.0.Ed+10 more productsRed Hat: 10 advisories
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 | AMD EPYC™ 7002 Series Processors | — | os kernel | Patch available | CNA |
| AMD | AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics | — | RenoirPI-FP6_1.0.0.Ed | Patch available | CNA |
| AMD | AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics | — | MendocinoPI-FT6_1.0.0.7f | Patch available | CNA |
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | — | ComboAM4v2 1.2.0.10 | Patch available | CNA |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors | — | ChagallWSPI-sWRX8-1.0.0.D | Patch available | CNA |
| AMD | AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics | — | CezannePI-FP6_1.0.1.1d | Patch available | CNA |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors | — | CastlePeakWSPI-sWRX8 1.0.0.I | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | — | CezannePI-FP6_1.0.1.1d | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | — | CezannePI-FP6_1.0.1.1d | Patch available | CNA |
| AMD | AMD Ryzen™ 4000 Series Desktop Processors | — | ComboAM4v2 1.2.0.10 | Patch available | CNA |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics | — | ComboAM4v2 1.2.0.10 | Patch available | CNA |
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | — | ComboAM4PI 1.0.0.10 | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 7002 Series Processors | — | OS kernel | Patch available | CNA |
| AMD | AMD Ryzen Embedded V2000A Series Processors | — | EmbeddedV2KAPI-FP6 1.0.0.A | Patch available | CNA |
| AMD | AMD Ryzen™ Embedded V2000 Series Processors | — | EmbeddedPI-FP6_1.0.0.D | Patch available | CNA |
- AMD EPYC™ 7002 Series Processors VendorAMD Affected — Fixed in os kernel Patch available CNA
- AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in RenoirPI-FP6_1.0.0.Ed Patch available CNA
- AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in MendocinoPI-FT6_1.0.0.7f Patch available CNA
- AMD Ryzen™ 3000 Series Desktop Processors VendorAMD Affected — Fixed in ComboAM4v2 1.2.0.10 Patch available CNA
- AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors VendorAMD Affected — Fixed in ChagallWSPI-sWRX8-1.0.0.D Patch available CNA
- AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6_1.0.1.1d Patch available CNA
- AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors VendorAMD Affected — Fixed in CastlePeakWSPI-sWRX8 1.0.0.I Patch available CNA
- AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6_1.0.1.1d Patch available CNA
- AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6_1.0.1.1d Patch available CNA
- AMD Ryzen™ 4000 Series Desktop Processors VendorAMD Affected — Fixed in ComboAM4v2 1.2.0.10 Patch available CNA
- AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics VendorAMD Affected — Fixed in ComboAM4v2 1.2.0.10 Patch available CNA
- AMD Ryzen™ 3000 Series Desktop Processors VendorAMD Affected — Fixed in ComboAM4PI 1.0.0.10 Patch available CNA
- AMD EPYC™ Embedded 7002 Series Processors VendorAMD Affected — Fixed in OS kernel Patch available CNA
- AMD Ryzen Embedded V2000A Series Processors VendorAMD Affected — Fixed in EmbeddedV2KAPI-FP6 1.0.0.A Patch available CNA
- AMD Ryzen™ Embedded V2000 Series Processors VendorAMD Affected — Fixed in EmbeddedPI-FP6_1.0.0.D Patch available CNA
Remediation
- Fix · CNA AMD EPYC™ 7002 Series Processors (AMD) Fixed in os kernel
- Fix · CNA AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in RenoirPI-FP6_1.0.0.Ed
- Fix · CNA AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics (AMD) Fixed in MendocinoPI-FT6_1.0.0.7f
- Fix · CNA AMD Ryzen™ 3000 Series Desktop Processors (AMD) Fixed in ComboAM4v2 1.2.0.10
- Fix · CNA AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors (AMD) Fixed in ChagallWSPI-sWRX8-1.0.0.D
- Fix · CNA AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6_1.0.1.1d
- Fix · CNA AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors (AMD) Fixed in CastlePeakWSPI-sWRX8 1.0.0.I
- Fix · CNA AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6_1.0.1.1d
- Fix · CNA AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6_1.0.1.1d
- Fix · CNA AMD Ryzen™ 4000 Series Desktop Processors (AMD) Fixed in ComboAM4v2 1.2.0.10
- Fix · CNA AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics (AMD) Fixed in ComboAM4v2 1.2.0.10
- Fix · CNA AMD Ryzen™ 3000 Series Desktop Processors (AMD) Fixed in ComboAM4PI 1.0.0.10
- Fix · CNA AMD EPYC™ Embedded 7002 Series Processors (AMD) Fixed in OS kernel
- Fix · CNA AMD Ryzen Embedded V2000A Series Processors (AMD) Fixed in EmbeddedV2KAPI-FP6 1.0.0.A
- Fix · CNA AMD Ryzen™ Embedded V2000 Series Processors (AMD) Fixed in EmbeddedPI-FP6_1.0.0.D
Red Hat 10 advisories
- RHSA-2026:62549 Released 2026-09-10 · Red Hat rating ImportantOpenShift Container Platform 4.16.70 bug fix and security update
- Red Hat OpenShift Container Platform 4.16 rhcos-aarch64-416.94.202609011112-0, rhcos-ppc64le-416.94.202609011112-0, rhcos-s390x-416.94.202609011112-0 +1
- RHSA-2026:59831 Released 2026-09-03 · Red Hat rating ImportantOpenShift Container Platform 4.12.97 bug fix and security update
- Red Hat OpenShift Container Platform 4.12 rhcos-x86_64-412.86.202608241157-0
- RHSA-2026:60019 Released 2026-09-03 · Red Hat rating ImportantOpenShift Container Platform 4.17.57 bug fix and security update
- Red Hat OpenShift Container Platform 4.17 rhcos-aarch64-417.94.202608250221-0, rhcos-ppc64le-417.94.202608250221-0, rhcos-s390x-417.94.202608250221-0 +1
Show 7 more Red Hat advisories
- RHSA-2026:57402 Released 2026-08-26 · Red Hat rating ImportantOpenShift Container Platform 4.19.44 bug fix and security update
- Red Hat OpenShift Container Platform 4.19 rhcos-aarch64-4.19.9.6.202608182320-0, rhcos-ppc64le-4.19.9.6.202608182320-0, rhcos-s390x-4.19.9.6.202608182320-0 +1
- RHSA-2026:57543 Released 2026-08-25 · Red Hat rating ImportantOpenShift Container Platform 4.20.35 bug fix and security update
- Red Hat OpenShift Container Platform 4.20 rhcos-aarch64-4.20.9.6.202608181658-0, rhcos-ppc64le-4.20.9.6.202608181658-0, rhcos-s390x-4.20.9.6.202608181658-0 +1
- RHSA-2026:57457 Released 2026-08-25 · Red Hat rating ImportantOpenShift Container Platform 4.21.30 bug fix and security update
- Red Hat OpenShift Container Platform 4.21 rhcos-aarch64-4.21.9.6.202608180431-0, rhcos-ppc64le-4.21.9.6.202608180431-0, rhcos-s390x-4.21.9.6.202608180431-0 +1
- RHSA-2026:59091 Released 2026-08-24 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.201.1.el8_4, kernel-4.18.0-305.201.1.el8_4, kernel-abi-stablelists-4.18.0-305.201.1.el8_4 +14
- Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.201.1.el8_4, kernel-4.18.0-305.201.1.el8_4, kernel-abi-stablelists-4.18.0-305.201.1.el8_4 +14
- RHSA-2026:54769 Released 2026-08-18 · Red Hat rating ImportantOpenShift Container Platform 4.22.10 bug fix and security update
- Red Hat OpenShift Container Platform 4.22 rhcos-aarch64-4.22.9.8.202608130832-0, rhcos-ppc64le-4.22.9.8.202608130832-0, rhcos-s390x-4.22.9.8.202608130832-0 +1
- RHSA-2026:50978 Released 2026-08-06 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.153.1.el8_10, kernel-4.18.0-553.153.1.el8_10, kernel-abi-stablelists-4.18.0-553.153.1.el8_10 +19
- Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.153.1.el8_10
- RHSA-2026:50979 Released 2026-08-06 · Red Hat rating Importantkernel-rt security, bug fix, and enhancement update
- Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.153.1.rt7.494.el8_10, kernel-rt-core-4.18.0-553.153.1.rt7.494.el8_10, kernel-rt-debug-4.18.0-553.153.1.rt7.494.el8_10 +9
- Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.153.1.rt7.494.el8_10, kernel-rt-core-4.18.0-553.153.1.rt7.494.el8_10, kernel-rt-debug-4.18.0-553.153.1.rt7.494.el8_10 +7
Timeline
- 2026-10-02 Threatist record created from CVE-2025-54518
- 2026-10-03 Alias added: GHSA-wrmr-crjv-w33g
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-2025-54518 · CVE Program
- CVE-2025-54518 · NVD
- FIRST EPSS
- GHSA-wrmr-crjv-w33g · GitHub Advisory Database · CC BY 4.0
- CVE-2025-54518 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences