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CVE-2022-23821

Improper access control in System Management Mode (SMM) may allow an attacker to write to SPI ROM...

9.8 Critical

Improper access control in System Management Mode (SMM) may allow an attacker to write to SPI ROM potentially leading to arbitrary code execution.

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
High
Integrity
High
Availability
High

Exploit likelihood

0.99%Up 0.9 points since Nov 15, 2023
90%50%10%1%

What each source reports

NVD Score used 9.8

Improper access control in System Management Mode (SMM) may allow an attacker to write to SPI ROM potentially leading to arbitrary code execution.

Record
CVE-2022-23821
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
CVE List No score

Improper access control in System Management Mode (SMM) may allow an attacker to write to SPI ROM potentially leading to arbitrary code execution.

Record
CVE-2022-23821
Updated
2026-11-02
EUVDEUVD-2022-28750 No score

Improper access control in System Management Mode (SMM) may allow an attacker to write to SPI ROM potentially leading to arbitrary code execution.

Record
EUVD-2022-28750
Updated
2026-11-03
GitHub AdvisoriesGHSA-wrmf-3x8w-vcx2 9.8

Improper access control in System Management Mode (SMM) may allow an attacker to write to SPI ROM...

Improper access control in System Management Mode (SMM) may allow an attacker to write to SPI ROM potentially leading to arbitrary code execution.

Record
GHSA-wrmf-3x8w-vcx2
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

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History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD

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

In short

CVE-2022-23821 is a critical vulnerability (CVSS 9.8) in Amd Ryzen™ Embedded 5000, published November 14, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.99%, the 62nd percentile. No source names a fixed version.

References

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