CVE-2026-0454
CVE-2026-0454
An out-of-bounds write in the AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to corrupt global firmware variables, potentially resulting in loss of integrity.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| 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 EPYC™ Embedded 9005 Series Processors AMD |
EmbeddedTurinPI_SP5_1005 (unaffected)
Other versions: affected |
CNA: AMD |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 4.6 medium |
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N | CNA: AMD |
| 4.0 / 4.6 medium |
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/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 | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
For agents and automation
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