Description
Improper cleanup in AMD CPU microcode patch loading could allow an attacker with local administrator privilege to load malicious CPU microcode, potentially resulting in loss of integrity of x86 instruction execution.
Scores
CVSS v3
7.2
EPSS
0.0001
EPSS Percentile
1.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-459
Status
published
Products (7)
AMD/AMD EPYC™ 9005 Series Processors
TurinPI 1.0.0.4
AMD/AMD EPYC™ Embedded 9000 Series Processors
Embturin PI 1.0.0.0
AMD/AMD Ryzen™ 9000 Series Desktop Processors
ComboAM5PI 1.2.0.3c
AMD/AMD Ryzen™ 9000HX Series Processors
FireRangeFL1PI 1.0.0.0a
AMD/AMD Ryzen™ AI 300 Series Processors
StrixKrackanPI-FP8_1.1.0.1b
AMD/AMD Ryzen™ Al Max+
StrixHaloPI-FP11_1.0.0.1
AMD/AMD Ryzen™ Threadripper™ 9000 series
ShimadaPeakPI-SP6 1.0.0.1
Published
Sep 06, 2025
Tracked Since
Feb 18, 2026