Cyber Resilience

CVE-2023-20558

Amd Ryzen 7 5700G Firmware ≤ comboam4_v2_pi_1.2.0.6c

Published
02 April 2023
Modified
20 February 2025
Patch / advisory
View advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0067 49th percentile
Risk Priority 65 floored blend · peak EPSS

Summary

CVE-2023-20558 is a high-severity Always-Incorrect Control Flow Implementation (CWE-670) vulnerability in Amd Ryzen 7 5700G Firmware. Its CVSS base score is 8.8 (High).

Operationally, ranked at the 49th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

Insufficient control flow management in AmdCpmOemSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to an escalation of privileges.

CWE(s)
NVD-CWE-OtherCWE-670

Related Threats

CVEs Like This One

CVE-2023-20559Same product: Amd Athlon Gold 3150U
CVE-2023-20589Same product: Amd Athlon Gold 3150U
CVE-2023-20579Same product: Amd Ryzen 3 3200U
CVE-2023-20597Same product: Amd Ryzen 3 3200U
CVE-2023-20555Same product: Amd Athlon Gold 3150U
CVE-2023-20596Same product: Amd Ryzen 3 5125C
CVE-2023-20594Same product: Amd Ryzen 3 3200U
CVE-2023-20571Same product: Amd Ryzen 3 5125C
CVE-2023-20565Same product: Amd Ryzen 3 5125C
CVE-2023-20563Same product: Amd Ryzen 3 5125C

Affected Assets

amd
ryzen 7 5700g firmware
≤ comboam4_v2_pi_1.2.0.6c
amd
ryzen 7 5700ge firmware
≤ comboam4_v2_pi_1.2.0.6c
amd
ryzen 5 5600g firmware
≤ comboam4_v2_pi_1.2.0.6c
amd
ryzen 5 5600ge firmware
≤ comboam4_v2_pi_1.2.0.6c
amd
ryzen 3 5300g firmware
≤ comboam4_v2_pi_1.2.0.6c
amd
ryzen 3 5300ge firmware
≤ comboam4_v2_pi_1.2.0.6c
amd
ryzen 9 5980hx firmware
≤ cezannepi-fp6_1.0.0.9
amd
ryzen 9 5980hs firmware
≤ cezannepi-fp6_1.0.0.9
amd
ryzen 7 5825u firmware
≤ cezannepi-fp6_1.0.0.9
amd
ryzen 9 5900hx firmware
≤ cezannepi-fp6_1.0.0.9
+79 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V9.2.1

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly prevent incorrect control-flow implementations via reviews, testing, and static analysis.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development and acceptance can detect paths that deviate from intended logic.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle processes can catch incorrect control-flow logic during design and code review.

A.8.28 Secure coding partial match
prevents

Secure coding standards and reviews directly target flawed control-flow implementations.

A.8.32 Change management partial match
prevents

Change-management gates may prevent deployment of flawed logic but do not address the coding defect itself.

References