Security 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 51th percentile
Risk Priority 65 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

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 in the top 49% of CVEs by exploit likelihood; 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-2023-20565Same product: Amd Ryzen 3 5125C
CVE-2023-20571Same 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

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.8.25 Secure development life cycle partial match
blocks

A.8.25 mandates an SDLC process that includes security requirements, checkpoints, secure coding guidelines, testing and developer training, which reaches a slice of control-flow defects but leaves most implementation bugs untouched without perfect enforcement at every checkpoint.

A.8.28 Secure coding partial match
prevents

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

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

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

A.8.32 Change management partial match
blocks

A.8.32 mandates a formal process for planning, authorizing, testing and documenting changes but does not itself inspect, correct or block the incorrect control-flow logic that CWE-670 describes; the defect can still be introduced and exploited if the developer writes it and the process accepts it.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-670, a class-level weakness, and none of its children carries one either.

References