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CVE Record

CVE-2025-54518: Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow a...

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.

HighCVSS 7.3Not KEV-listedUpdated
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Potential ATT&CK relevance

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CWE-1189: Exact CWE lookup

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CVE-2025-54518 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.3 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
5Timeline events
3ADP providers
17Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.3CVSS 4.0HighCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——AMD
7CVSS 3.1HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H15.9redhat-SADP

Vulnerability scoring details

Base CVSS 4.0 score

7.3High
CVSS 4.0 vector shape for CVE-2025-54518Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc
redhat-SADPkernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation
other:Red Hat severity ratingcvssV3_1
  • 2026-05-15T05:01:27.379Z: Reported to Red Hat.
  • 2026-05-15T03:06:30.822Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AMDAMD EPYC™ 7002 Series Processorsos kernelaffected
AMDAMD Ryzen™ 4000 Series Mobile Processors with Radeon™ GraphicsRenoirPI-FP6_1.0.0.Edaffected
AMDAMD Ryzen™ 7020 Series Processors with Radeon™ GraphicsMendocinoPI-FT6_1.0.0.7faffected
AMDAMD Ryzen™ 3000 Series Desktop ProcessorsComboAM4v2 1.2.0.10affected
AMDAMD Ryzen™ Threadripper™ PRO 3000 WX-Series ProcessorsChagallWSPI-sWRX8-1.0.0.Daffected
AMDAMD Ryzen™ 7030 Series Mobile Processors with Radeon™ GraphicsCezannePI-FP6_1.0.1.1daffected
AMDAMD Ryzen™ Threadripper™ PRO 3000 WX-Series ProcessorsCastlePeakWSPI-sWRX8 1.0.0.Iaffected
AMDAMD Ryzen™ 5000 Series Mobile Processors with Radeon™ GraphicsCezannePI-FP6_1.0.1.1daffected
AMDAMD Ryzen™ 5000 Series Mobile Processors with Radeon™ GraphicsCezannePI-FP6_1.0.1.1daffected
AMDAMD Ryzen™ 4000 Series Desktop ProcessorsComboAM4v2 1.2.0.10affected
AMDAMD Ryzen™ 5000 Series Desktop Processors with Radeon™ GraphicsComboAM4v2 1.2.0.10affected
AMDAMD Ryzen™ 3000 Series Desktop ProcessorsComboAM4PI 1.0.0.10affected
AMDAMD EPYC™ Embedded 7002 Series ProcessorsOS kernelaffected
AMDAMD Ryzen Embedded V2000A Series ProcessorsEmbeddedV2KAPI-FP6 1.0.0.Aaffected
AMDAMD Ryzen™ Embedded V2000 Series ProcessorsEmbeddedPI-FP6_1.0.0.Daffected
Weakness

CWE details

CWE-1189CWE-1220

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-1189 · source CWE mapping

Improper Isolation of Shared Resources on System-on-a-Chip (SoC)

Improper Isolation of Shared Resources on System-on-a-Chip (SoC) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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CWE-1220 · source CWE mapping

Insufficient Granularity of Access Control

Insufficient Granularity of Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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