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CVE-2024-4760

Voltage glitch during startup of the EEFC NVM controller can bypass the security bit

Published: May 16, 2024Updated: Jun 6, 2025 Sources: CVE List NVD BDUCWE-1247
6.3MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 89.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A voltage glitch during the startup of EEFC NVM controllers on Microchip SAM E70/S70/V70/V71, SAM G55, SAM 4C/4S/4N/4E, and SAM 3S/3N/3U microcontrollers allows access to the memory bus via the debug interface even if the security bit is set.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:PAC:HPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:PAttack Vector
Physical
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-1247

Affected Products

SAM E70Microchip TechnologyHardware Firmware
SAM S70Microchip TechnologyHardware Firmware
SAM V70Microchip TechnologyHardware Firmware
SAM V71Microchip TechnologyHardware Firmware
SAM G55Microchip TechnologyHardware Firmware
microchip technologycommercialUSHardware Firmwareaka rn131, rn171, rn1810
and 19 more affected products View all →

Exploitability

Official Patch Available
Workaround Available

References

https://ww1.microchip.com/downloads/aemDocuments/documents/MCU32/ProductDocuments/SupportingCollateral/Security-Advisory-CVE-2024-4760.pdf
ww1.microchip.com
https://www.0x01team.com/hw_security/bypassing-microchip-atmel-sam-e70-s70-v70-v71-security/
0x01team.com
https://ww1.microchip.com/downloads/aemDocuments/documents/MCU32/ProductDocuments/SupportingCollateral/Security-Advisory-CVE-2024-4760.pdf
ww1.microchip.com

Timeline

Published
May 16, 2024
Last Updated
Jun 6, 2025

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