CVE-2021-46772 json
Insufficient input validation in the ABL may allow a privileged attacker with access to the BIOS menu or UEFI shell to tamper with the stru…
published 2024-08-13 2 y ago modified 2026-06-17 4 mo ago also EUVD-2021-33428
- cvss
- 3.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 7%
- public exploits
- 0
- none known
Summary
Insufficient input validation in the ABL may allow a privileged attacker with access to the BIOS menu or UEFI shell to tamper with the structure headers in SPI ROM causing an out of bounds memory read and write, potentially resulting in memory corruption or denial of service.
Patch / fix
- AMD AMD EPYC™ 7002 Series Processors RomePI 1.0.0.E
- AMD AMD EPYC™ 7003 Series Processors MilanPI 1.0.0.9
- AMD AMD Ryzen™ 5000 Series Desktop Processors ComboAM4V2 1.2.0.A
- AMD AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors ChagallWSPI-sWRX8 1.0.0.6
- AMD AMD Ryzen™ Threadripper™ PRO 5000WX Processors ChagallWSPI-sWRX8 1.0.0.6
- AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics CezannePI-FP6 1.0.0.E
- AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics MendocinoPI-FT6 1.0.0.3
- AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics RembrandtPI-FP7 1.0.0.7
- AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics RembrandtPI-FP7 1.0.0.7
- AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics CezannePI-FP6 1.0.0.E
- AMD AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics CezannePI-FP6 1.0.0.E
- AMD AMD EPYC™ Embedded 7002 Series Processors EmbRomePI-SP3 1.0.0.8
- AMD AMD EPYC™ Embedded 7003 Series Processors EmbMilanPI-SP3 1.0.0.5
- AMD AMD Ryzen™ Embedded V3000 Series Processors EmbeddedPI-FP7r2 1.0.0.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.9 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L |
Affected products
- AMD AMD EPYC™ 7002 Series Processors
- AMD AMD EPYC™ 7003 Series Processors
- AMD AMD Ryzen™ 3000 Series Desktop Processors
- AMD AMD Ryzen™ 5000 Series Desktop Processors
- AMD AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics
- AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics
- AMD AMD Ryzen™ Threadripper™ 3000 Series Processors
- AMD AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors
- AMD AMD Ryzen™ Threadripper™ PRO 5000WX Processors
- AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics
- AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics
- AMD AMD EPYC™ Embedded 7002 Series Processors
- AMD AMD EPYC™ Embedded 7003 Series 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
References
Sources
- CVE List CVE-2021-46772
- NVD CVE-2021-46772
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