CVE-2021-46772
Insufficient input validation in the ABL may allow a privileged attacker with access to the BIOS...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2021-46772- CVSS 3.1
- 3.9 Low
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L - Weakness
- CWE-125, CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2021-33428
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.
- Record
EUVD-2021-33428- CVSS 3.1
- 3.9 Low
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mgjx-cq94-rwcv
Insufficient input validation in the ABL may allow a privileged attacker with access to the BIOS...
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.
- Record
GHSA-mgjx-cq94-rwcv- CVSS 3.1
- 3.9 Low
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L - Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-46772- CVSS 3.1
- 3.9 Low
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L - Weakness
- CWE-125, CWE-787
- Updated
- 2026-11-02
Affected products
- amd athlon™ 3000 series desktop processors with radeon™ graphics
- amd athlon™ 3000 series mobile processors with radeon™ graphics
- amd epyc™ 7002 series processors
- amd epyc™ 7003 series processors
- amd epyc™ embedded 7002 series processors
- amd epyc™ embedded 7003 series processors
- amd ryzen™ 3000 series desktop processors
- amd ryzen™ 3000 series mobile processor with radeon™ graphics
- amd ryzen™ 3000 series processors with radeon™ graphics
- amd ryzen™ 4000 series desktop processors with radeon™ graphics
- amd ryzen™ 4000 series mobile processors with radeon™ graphics
- amd ryzen™ 5000 series desktop processor with radeon™ graphics
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- amd ryzen™ 5000 series desktop processors
- amd ryzen™ 5000 series mobile processors with radeon™ graphics
- amd ryzen™ 5000 series processors with radeon™ graphics
- amd ryzen™ 6000 series processors with radeon™ graphics
- amd ryzen™ 7020 series processors with radeon™ graphics
- amd ryzen™ 7035 series processors with radeon™ graphics
- amd ryzen™ embedded 5000 series processors
- amd ryzen™ embedded r1000 series processors
- amd ryzen™ embedded r2000 series processors
- amd ryzen™ embedded v1000 series processors
- amd ryzen™ embedded v2000 series processors
- amd ryzen™ embedded v3000 series processors
- amd ryzen™ threadripper™ 3000 series processors
- amd ryzen™ threadripper™ pro 3000wx series processors
- amd ryzen™ threadripper™ pro 5000wx processors
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-46772 is a low vulnerability (CVSS 3.9) in Amd Athlon™ 3000 Series Desktop Processors With Radeon™ Graphics, published August 13, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 7th percentile. No source names a fixed version.