PT-2026-33582 · Amd+1 · Amd Cpus+1
CVE-2025-54505
·
Published
2026-04-17
·
Updated
2026-08-21
CVSS v4.0
2.0
Low
| Vector | AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/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 |
Name of the Vulnerable Software and Affected Versions
AMD CPUs (affected versions not specified)
Description
A transient execution vulnerability exists within AMD CPUs that allows a local user-privileged attacker to leak data via the floating point divisor unit. This issue, known as Floating Point Divider State Sampling (FP-DSS), enables the leaking of previous SSE/AVX floating-point division operands, including those from other SMT threads, which may result in a loss of confidentiality.
Recommendations
Set bit 9 in MSR
0xC0011028 to mitigate the risk.Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Amd Cpus
Ubuntu