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CVE-2024-38433

Nuvoton - CWE-305: Authentication Bypass by Primary Weakness

MEDIUM

6.7

CVSS Score

Published: July 11, 2024 at 07:50 AM UTC

Updated: June 17, 2026 at 07:40 AM UTC

9 products affected across 1 vendorNPCM705R FirmwareNPCM710R FirmwareNPCM750R Firmware

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Severity

MEDIUM6.7

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

Nuvoton - CWE-305: Authentication Bypass by Primary Weakness An attacker with write access to the SPI-Flash on an NPCM7xx BMC subsystem that uses the Nuvoton BootBlock reference code can modify the u-boot image header on flash parsed by the BootBlock which could lead to arbitrary code execution.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

NPCM705R Firmware · Nuvoton

95%

v < 10.10.19

Affected range stops below 10.10.19, so it looks safe — our inference, not a vendor statement

nuvoton-npcm705r (same device)

NPCM710R Firmware · Nuvoton

95%

v < 10.10.19

Affected range stops below 10.10.19, so it looks safe — our inference, not a vendor statement

nuvoton-npcm710r (same device)

NPCM730R Firmware · Nuvoton

95%

v < 10.10.19

Affected range stops below 10.10.19, so it looks safe — our inference, not a vendor statement

nuvoton-npcm730r (same device)

NPCM750R Firmware · Nuvoton

95%

v < 10.10.19

Affected range stops below 10.10.19, so it looks safe — our inference, not a vendor statement

nuvoton-npcm750r (same device)

NPCM7XX · Nuvoton

60%

v < v10.10.19

Affected range stops below v10.10.19, so it looks safe — our inference, not a vendor statement

Npcm705R · Nuvotondevice

80%

All versions

Npcm710R · Nuvotondevice

80%

All versions

Npcm730R · Nuvotondevice

80%

All versions

Npcm750R · Nuvotondevice

80%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party Advisory

Source: [email protected]

https://www.gov.il/en/Departments/faq/cve_advisories

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.7MEDIUMINCD

Attack Vector: LOCAL
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-305CWE-287

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