Cyber Resilience

CVE-2023-20597

Memory Safety in Amd Ryzen 3 3100 Firmware comboam4pi_1.0.0.9 … comboam4v2pi_1.2.0.8

Memory Safety
Published
20 September 2023
Modified
27 June 2025
Patch / advisory
View advisory
CVSS Score v3.1 5.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0017 7th percentile
Risk Priority 41 floored blend · peak EPSS

Summary

CVE-2023-20597 is a medium-severity Access of Uninitialized Pointer (CWE-824) vulnerability in Amd Ryzen 3 3100 Firmware. Its CVSS base score is 5.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive information via local access.

CWE(s)
CWE-824CWE-665

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-20594Same product: Amd Ryzen 3100
CVE-2023-20555Same product: Amd Ryzen 3 3300
CVE-2023-20520Same vendor: Amd
CVE-2025-29933Same vendor: Amd
CVE-2023-20524Same vendor: Amd
CVE-2024-21980Same vendor: Amd
CVE-2023-31355Same vendor: Amd
CVE-2023-31307Same vendor: Amd
CVE-2025-48511Same vendor: Amd
CVE-2025-48502Same vendor: Amd

Affected Assets

amd
ryzen 3 3100 firmware
comboam4pi_1.0.0.9, comboam4v2pi_1.2.0.8
amd
ryzen 3 3200g firmware
comboam4pi_1.0.0.9, comboam4v2pi_1.2.0.8
amd
ryzen 3 3200ge firmware
comboam4pi_1.0.0.9, comboam4v2pi_1.2.0.8
amd
ryzen 3 3200u firmware
comboam4pi_1.0.0.9, comboam4v2pi_1.2.0.8
amd
ryzen 3 3250c firmware
comboam4pi_1.0.0.9, comboam4v2pi_1.2.0.8
amd
ryzen 3 3250u firmware
comboam4pi_1.0.0.9, comboam4v2pi_1.2.0.8
amd
ryzen 3 3300 firmware
comboam4pi_1.0.0.9, comboam4v2pi_1.2.0.8
amd
ryzen 3 3300g firmware
comboam4pi_1.0.0.9, comboam4v2pi_1.2.0.8
amd
ryzen 3 3300u firmware
comboam4pi_1.0.0.9, comboam4v2pi_1.2.0.8
amd
ryzen 3 3300x firmware
comboam4pi_1.0.0.9, comboam4v2pi_1.2.0.8
+91 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-4 Information in Shared System Resources
addresses: CWE-665

Ensures shared resources are explicitly initialized or cleared on allocation, preventing exposure of prior contents to new users or processes.

SI-14 Non-persistence
addresses: CWE-665

Mandates that every instance begins in a known (presumably clean) state, eliminating reliance on residual or uninitialized state left by prior executions.

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 uninitialized pointer bugs via coding standards, analysis, and reviews, but eliminating this single weakness only partially fulfills the broader control.

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 can detect uninitialized pointer usage before release.

A.8.9 Configuration management mostly match
prevents

Configuration management can enforce secure defaults and initialization settings but is not the primary control for code-level initialization.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates practices that reduce uninitialized pointer defects.

A.8.26 Application security requirements partial match
degrades

Application security requirements can specify pointer initialization rules.

A.8.27 Secure system architecture and engineering principles partial match
degrades

Secure architecture principles discourage unsafe pointer handling.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly prohibit use of uninitialized pointers.

References