Public vulnerability disclosure

CVE-2026-0004

CVE-2026-0004

publishedCWE-1421

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.

Technical severity5.7 mediumCVSS 4.0 · CNA: AMD
Published2026-11-12Source updated 2026-11-13
Collected2026-11-132 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

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

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
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:NCNA: AMD
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:XNVD: [email protected]

Exploit evidence

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

References

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