CVSS 4.0
5.7 mediumCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NCVE-2026-0004 amd
Medium (5.7) in amd. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.
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.
Severity
- EPSS
- 0.2% estimated probability of exploitation activity in the next 30 days; 7th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-13. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- Published
- Modified
- Assigned by
- AMD (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
- amd:amd epyc™ 8005 series processors
- amd:amd epyc™ 9005 series processors
- amd:amd epyc™ embedded 2005 series processors
- amd:amd epyc™ embedded 9005 series processors
- amd:amd ryzen™ 9000 series desktop processors
- amd:amd ryzen™ 9000hx series processors
- amd:amd ryzen™ ai 300 series processors
- amd:amd ryzen™ ai 400 series desktop processors
- amd:amd ryzen™ ai 400 series processors
- amd:amd ryzen™ ai max 300 series processors
- amd:amd ryzen™ ai max 400 series processors
- amd:amd ryzen™ embedded 9000 series processors
- amd:amd ryzen™ embedded p100 series processors
- amd:amd ryzen™ threadripper™ 7000 processors
- amd:amd ryzen™ threadripper™ 9000 processors
- amd:amd ryzen™ threadripper™ pro 7000 wx-series processors
- amd:amd ryzen™ threadripper™ pro 9000 wx-series processors
- amd:amd ryzen™ z1 series processors
- amd:amd ryzen™ z2 series processors extreme
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Debian | 12, 13, 14 | xen, linux | no fix listed | DEBIAN-CVE-2026-0004 |
| Ubuntu | 14.04:LTS, 20.04:LTS, 22.04:LTS and 5 more | amd64-microcode | no fix listed | UBUNTU-CVE-2026-0004 |
From the distributions' data via OSV.dev: the Debian Security Tracker; Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian · Ubuntu.