What’s Vulnerable › Vulnerabilities

CVE-2024-4760: Voltage glitch during startup of the EEFC NVM controller can bypass the security bit

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-16 · updated 2026-06-17
• Weakness: CWE-1247

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.

Affected products

• Amtel Same70: all versions
• Amtel Sams70: all versions
• Amtel Samv70: all versions
• Amtel Samv71: all versions

References

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

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