CVE-2024-21947 json
Improper input validation in the system management mode (SMM) could allow a privileged attacker to overwrite arbitrary memory potentially r…
published 2025-09-06 14 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-19553
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 3%
- public exploits
- 0
- none known
Summary
Improper input validation in the system management mode (SMM) could allow a privileged attacker to overwrite arbitrary memory potentially resulting in arbitrary code execution at the SMM level.
Patch / fix
- AMD AMD Ryzen™ Threadripper™ 3000 Processors CastlePeakPI-SP3r3 1.0.0.C
- AMD AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors ChagallWSPI-sWRX8-1.0.0.7
- AMD AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics CezannePI-FP6_1.0.1.0
- AMD AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors CastlePeakWSPI-sWRX8 1.0.0.E, ChagallWSPI-sWRX8-1.0.0.7
- AMD AMD Ryzen™ 3000 Series Desktop Processors ComboAM4 1.0.0.B, ComboAM4v2PI_1.2.0.CA
- AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics Picasso-FP5 1.0.1.1
- AMD AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics Picasso-FP5 1.0.1.1
- AMD AMD Ryzen™ 5000 Series Desktop Processors ComboAM4v2PI_1.2.0.CA
- AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics ComboAM4 1.0.0.B
- AMD AMD Ryzen™ 8000 Series Desktop Processors ComboAM5 1.2.0.0
- AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics PhoenixPI-FP8-FP7_1.1.0.2
- AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics Renoir-FP6 1.0.0.D
- AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics Rembrandt-FP7 1.0.0.A
- AMD AMD Ryzen™ 7000 Series Desktop Processors ComboAM5 1.2.0.0
- AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics MendocinoPI-FT6_1.0.0.6
- AMD AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics DragonRangeFL1 1.0.0.3d
- AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics Rembrandt-FP7 1.0.0.A
- AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics CezannePI-FP6_1.0.1.0
- AMD AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics ComboAM4v2PI_1.2.0.CA
- AMD AMD Ryzen™ 4000 Series Desktop Processors ComboAM4v2PI_1.2.0.CA
- AMD AMD Ryzen™ Embedded R1000 Series Processors EmbeddedPI-FP5 120C
- AMD AMD Ryzen™ Embedded R2000 Series Processors EmbeddedR2KPI-FP5_1003
- AMD AMD Ryzen™ Embedded 5000 Series Processors EmbAM4PI 1.0.0.5
- AMD AMD Ryzen™ Embedded V1000 Series Processors EmbeddedPI-FP5 120C
- AMD AMD Ryzen™ Embedded V2000 Series Processors EmbeddedPI-FP6_1.0.0.A
- AMD AMD Ryzen™ Embedded V3000 Series Processors Embedded-PI_FP7r2 1009
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 14 mo ago
Exploit prediction
0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
Affected products
- AMD AMD Ryzen™ Threadripper™ 3000 Processors
- AMD AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors
- AMD AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors
- AMD AMD Ryzen™ 3000 Series Desktop Processors
- AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 5000 Series Desktop Processors
- AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 8000 Series Desktop Processors
- AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 7000 Series Desktop Processors
- AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 4000 Series Desktop Processors
- AMD AMD Ryzen™ Embedded R1000 Series Processors
- AMD AMD Ryzen™ Embedded R2000 Series Processors
- AMD AMD Ryzen™ Embedded 5000 Series Processors
- AMD AMD Ryzen™ Embedded V1000 Series Processors
- AMD AMD Ryzen™ Embedded V2000 Series Processors
- AMD AMD Ryzen™ Embedded V3000 Series Processors
Classification
- Weakness
-
- CWE-1220 Insufficient Granularity of Access Control
References
Sources
- CVE List CVE-2024-21947
- NVD CVE-2024-21947
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.