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Medium · 6.3 CVE-2024-4760 EUVD-2024-44357GHSA-5mp7-g9p8-p9xx

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

Published May 16, 2024 · Updated Jun 6, 2025 · Assigned by Microchip

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

VendorProductAffectedFixed
Microchip SAME70 — —
Microchip SAMS70 — —
Microchip SAMV70 — —
Microchip SAMV71 — —
Microchip SAMG55 — —
Microchip SAM4C — —
Microchip SAM4S — —
Microchip SAM4N — —
Microchip SAM4E — —
Microchip SAM3S — —
Microchip SAM3N — —
Microchip SAM3U — —

References