Description
A Time-of-check time-of-use (TOCTOU) race condition in the SMM communications buffer could allow a privileged attacker to bypass input validation and perform an out of bounds read or write, potentially resulting in loss of confidentiality, integrity, or availability.
Scores
CVSS v4
4.6
EPSS
0.0001
EPSS Percentile
3.3%
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-367
Status
published
Products (9)
AMD/AMD Ryzen™ 7000 Series Desktop Processors
ComboAM5PI 1.0.0.b
AMD/AMD Ryzen™ 7000 Series Desktop Processors
ComboAM5PI 1.1.0.3d
AMD/AMD Ryzen™ 7000 Series Desktop Processors
ComboAM5PI 1.2.0.3d
AMD/AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics
DragonRangeFL1PI 1.0.0.3h
AMD/AMD Ryzen™ 8000 Series Desktop Processors
ComboAM5PI 1.1.0.3d
AMD/AMD Ryzen™ 8000 Series Desktop Processors
ComboAM5PI 1.2.0.3d
AMD/AMD Ryzen™ 9000 Series Desktop Processors
ComboAM5PI 1.2.0.3d
AMD/AMD Ryzen™ 9000HX Series Mobile Processors
FireRangeFL1PI 1.0.0.0a
AMD/AMD Ryzen™ Embedded 7000 Series Processors
EmbeddedAM5PI 1.0.0.4
Published
Feb 10, 2026
Tracked Since
Feb 18, 2026