CVE-2024-21977

CVE.org · Published

Record status: Published
Identifier year (not publication year): 2024
Source publication: Sep 5, 2025
Source updated: Sep 5, 2025
Imported by cveboard: Oct 24, 2026
Source snapshot: cve_2026-10-24_midnight_baseline · Oct 24, 2026

CNA source text (English)

Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

AMD EPYC™ 7003 Series Processors

Vendor: AMD
Product: AMD EPYC™ 7003 Series Processors
Platforms: Unknown
Default status: affected

AMD EPYC™ 7003 Series Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
MilanPI 1.0.0.D	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD EPYC™ 9004 Series Processors

Vendor: AMD
Product: AMD EPYC™ 9004 Series Processors
Platforms: Unknown
Default status: affected

AMD EPYC™ 9004 Series Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
GenoaPI 1.0.0.C	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD EPYC™ 8004 Series Processors

Vendor: AMD
Product: AMD EPYC™ 8004 Series Processors
Platforms: Unknown
Default status: affected

AMD EPYC™ 8004 Series Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
GenoaPI 1.0.0.C	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors

Vendor: AMD
Product: AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors
Platforms: Unknown
Default status: affected

AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
ChagallWSPI-sWRX8 1.0.0.8	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics

Vendor: AMD
Product: AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics
Platforms: Unknown
Default status: affected

AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
CezannePI-FP6_1.0.1.1	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics

Vendor: AMD
Product: AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics
Platforms: Unknown
Default status: affected

AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
RembrandtPI-FP7/FP7r2_1.0.0.B	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ 5000 Series Desktop Processors

Vendor: AMD
Product: AMD Ryzen™ 5000 Series Desktop Processors
Platforms: Unknown
Default status: affected

AMD Ryzen™ 5000 Series Desktop Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
ComboAM4v2 1.2.0.Cb	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ 7000 Series Desktop Processors

Vendor: AMD
Product: AMD Ryzen™ 7000 Series Desktop Processors
Platforms: Unknown
Default status: affected

AMD Ryzen™ 7000 Series Desktop Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
ComboAM5 1.2.0.1	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics

Vendor: AMD
Product: AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics
Platforms: Unknown
Default status: affected

AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
PhoenixPI-FP8-FP7_1.1.0.3	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics

Vendor: AMD
Product: AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics
Platforms: Unknown
Default status: affected

AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
RembrandtPI-FP7/FP7r2_1.0.0.B	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics

Vendor: AMD
Product: AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics
Platforms: Unknown
Default status: affected

AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
DragonRangeFL1 1.0.0.3e	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors

Vendor: AMD
Product: AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors
Platforms: Unknown
Default status: affected

AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
ChagallWSPI-sWRX8 1.0.0.8	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics

Vendor: AMD
Product: AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics
Platforms: Unknown
Default status: affected

AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
CezannePI-FP6_1.0.1.1	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ 8000 Series Desktop Processors

Vendor: AMD
Product: AMD Ryzen™ 8000 Series Desktop Processors
Platforms: Unknown
Default status: affected

AMD Ryzen™ 8000 Series Desktop Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
ComboAM5 1.2.0.1	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD EPYC™ Embedded 7003 Series Processors

Vendor: AMD
Product: AMD EPYC™ Embedded 7003 Series Processors
Platforms: Unknown
Default status: affected

AMD EPYC™ Embedded 7003 Series Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
EmbMilanPI-SP3 1.0.0.9	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD EPYC™ Embedded 9004 Series Processors

Vendor: AMD
Product: AMD EPYC™ Embedded 9004 Series Processors
Platforms: Unknown
Default status: affected

AMD EPYC™ Embedded 9004 Series Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
EmbGenoaPI-SP5 1.0.0.9	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ Embedded 8000 Series Processors

Vendor: AMD
Product: AMD Ryzen™ Embedded 8000 Series Processors
Platforms: Unknown
Default status: affected

AMD Ryzen™ Embedded 8000 Series Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
EmbeddedPhoenixPI-FP7r2_1.2.0.0	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ Embedded 7000 Series Processors

Vendor: AMD
Product: AMD Ryzen™ Embedded 7000 Series Processors
Platforms: Unknown
Default status: affected

AMD Ryzen™ Embedded 7000 Series Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
EmbeddedAM5PI 1.0.0.3	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ Embedded 5000 Series Processors

Vendor: AMD
Product: AMD Ryzen™ Embedded 5000 Series Processors
Platforms: Unknown
Default status: affected

AMD Ryzen™ Embedded 5000 Series Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
EmbAM4PI 1.0.0.7	`unaffected`	Unavailable	Unavailable	Unavailable	None listed

AMD Ryzen™ Embedded V3000 Series Processors

Vendor: AMD
Product: AMD Ryzen™ Embedded V3000 Series Processors
Platforms: Unknown
Default status: affected

AMD Ryzen™ Embedded V3000 Series Processors · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
Embedded-PI_FP7r2 100A	`unaffected`	Unavailable	Unavailable	Unavailable	None listed