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CVE-2024-21947

Improper input validation in the system management mode (SMM) could allow a privileged attacker...

7.5 High

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.

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
High
Integrity
High
Availability
High

Exploit likelihood

0.14%Up 0.1 points since Sep 7, 2025
90%50%10%1%

What each source reports

CVE List Score used 7.5

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.

Record
CVE-2024-21947
CVSS 3.1
7.5 HighCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-1220
Updated
2026-11-02
EUVDEUVD-2024-19553 7.5

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.

Record
EUVD-2024-19553
CVSS 3.1
7.5 HighCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-4jcj-3w4f-wvcm 7.5

Improper input validation in the system management mode (SMM) could allow a privileged attacker...

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.

Record
GHSA-4jcj-3w4f-wvcm
CVSS 3.1
7.5 HighCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-20, CWE-1220
Updated
2026-11-02
NVD 7.5

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.

Record
CVE-2024-21947
CVSS 3.1
7.5 HighCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-1220
Updated
2026-11-02

Affected products

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History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-21947 is a high vulnerability (CVSS 7.5) in Amd Athlon™ 3000 Series Desktop Processors With Radeon™ Graphics, published September 6, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.

References

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