# CVE-2026-0004: CVE-2026-0004

Status: published. Published: 2026-11-12. Updated: 2026-11-13.

A transient execution vulnerability in some AMD processors may allow an attacker with the ability to execute code on the system to infer data in the L1D cache, potentially resulting in the leakage of sensitive information across privileged boundaries.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- AMD / AMD EPYC™ 9005 Series Processors: TurinPI_1.0.0.B (unaffected). Source: CNA: AMD
- AMD / AMD EPYC™ 8005 Series Processors: TurinPI_1.0.0.B (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ 9000HX Series Processors: FireRangeFL1 PI-1.0.0.0i (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ AI 300 Series Processors: StrixKrackanPI-FP8_1.1.0.0h (unaffected); StrixKrackanPI-FP8_1.1.0.2g (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ 9000 Series Desktop Processors: ComboAM5PI_1.2.0.3l (unaffected); ComboAM5PI_1.3.0.1d (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ AI Max 400 Series Processors: GorgonHalo PI FP11_1.0.0.0b (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ AI Max 300 Series Processors: StrixHalo PI-FP11_1.0.0.2d (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ AI 400 Series Desktop Processors: ComboAM5PI_1.3.0.1d (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ Z1 Series Processors: StrixKrackanPI-FP8_1.1.0.0h (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ Z2 Series Processors Extreme: StrixKrackanPI-FP8_1.1.0.0h (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors: ShimadaPeakPI-SP6-1.0.0.1h (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ Threadripper™ 7000  Processors: ShimadaPeakPI-SP6-1.0.0.1h (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ AI 400 Series Processors: GorgonPI-FP8_1.0.0.2e (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ Threadripper™ 9000 Processors: ShimadaPeakPI-SP6-1.0.0.1h (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ Threadripper™ PRO 9000 WX-Series Processors: ShimadaPeakPI-SP6-1.0.0.1h (unaffected). Source: CNA: AMD
- AMD / AMD EPYC™ Embedded 9005 Series Processors: EmbeddedTurinPI_SP5_1005 (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ Embedded 9000 Series Processors: EmbeddedAM5PI_1.0.0.9 (unaffected). Source: CNA: AMD
- AMD / AMD EPYC™ Embedded 2005 Series Processors: EmbeddedFireRangeFL1_1.0.0.5 (unaffected). Source: CNA: AMD
- AMD / AMD Ryzen™ Embedded P100 Series Processors: EmbeddedP100 PI 1000 (unaffected). Source: CNA: AMD

## Severity and prioritization

- CVSS 4.0: 5.7 (medium); CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N; source: CNA: AMD

- CVSS 4.0: 5.7 (medium); CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: psirt@amd.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-1421

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4018.html (CNA: AMD)

- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3055.html (CNA: AMD)

- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3055.html (psirt@amd.com)

- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4018.html (psirt@amd.com)

## Provenance

- CNA: AMD: https://www.cve.org/CVERecord?id=CVE-2026-0004; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0004; retrieved 2026-11-13; source updated 2026-11-12

Revision: e62818c046308e6b6da93917fa9f41d3f040651fbdedc20c9a6a9e48259244ea

Canonical: https://y2.dev/cve/CVE-2026-0004

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