CVE-2021-46763
Insufficient input validation in the SMU may enable a privileged attacker to write beyond the...
Insufficient input validation in the SMU may enable a privileged attacker to write beyond the intended bounds of a shared memory buffer potentially leading to a loss of integrity.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Insufficient input validation in the SMU may enable a privileged attacker to write beyond the intended bounds of a shared memory buffer potentially leading to a loss of integrity.
- Record
CVE-2021-46763- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List
Insufficient input validation in the SMU may enable a privileged attacker to write beyond the intended bounds of a shared memory buffer potentially leading to a loss of integrity.
- Record
CVE-2021-46763- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2021-33419
Insufficient input validation in the SMU may enable a privileged attacker to write beyond the intended bounds of a shared memory buffer potentially leading to a loss of integrity.
- Record
EUVD-2021-33419- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4c6m-4p4p-3j5f
Insufficient input validation in the SMU may enable a privileged attacker to write beyond the...
Insufficient input validation in the SMU may enable a privileged attacker to write beyond the intended bounds of a shared memory buffer potentially leading to a loss of integrity.
- Record
GHSA-4c6m-4p4p-3j5f- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
- amd 2nd gen amd epyc™
- amd 3rd gen amd epyc™
- amd epyc 7232p firmware
- amd epyc 7252 firmware
- amd epyc 7262 firmware
- amd epyc 7272 firmware
- amd epyc 7282 firmware
- amd epyc 72f3 firmware
- amd epyc 7302 firmware
- amd epyc 7302p firmware
- amd epyc 7313 firmware
- amd epyc 7313p firmware
Show 38 moreShow less
- amd epyc 7343 firmware
- amd epyc 7352 firmware
- amd epyc 7373x firmware
- amd epyc 73f3 firmware
- amd epyc 7402 firmware
- amd epyc 7402p firmware
- amd epyc 7413 firmware
- amd epyc 7443 firmware
- amd epyc 7443p firmware
- amd epyc 7452 firmware
- amd epyc 7453 firmware
- amd epyc 7473x firmware
- amd epyc 74f3 firmware
- amd epyc 7502 firmware
- amd epyc 7502p firmware
- amd epyc 7513 firmware
- amd epyc 7532 firmware
- amd epyc 7542 firmware
- amd epyc 7543 firmware
- amd epyc 7543p firmware
- amd epyc 7552 firmware
- amd epyc 7573x firmware
- amd epyc 75f3 firmware
- amd epyc 7642 firmware
- amd epyc 7643 firmware
- amd epyc 7662 firmware
- amd epyc 7663 firmware
- amd epyc 7702 firmware
- amd epyc 7702p firmware
- amd epyc 7713 firmware
- amd epyc 7713p firmware
- amd epyc 7742 firmware
- amd epyc 7763 firmware
- amd epyc 7773x firmware
- amd epyc 7f32 firmware
- amd epyc 7f52 firmware
- amd epyc 7f72 firmware
- amd epyc 7h12 firmware
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-2021-46763 is a high vulnerability (CVSS 7.5) in Amd 2nd Gen Amd Epyc™, published May 9, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. No source names a fixed version.