Global infos:

A voltage glitch during the startup of EEFC NVM controllers on Microchip SAM E70/S70/V70/V71 microcontrollers allows access to the memory bus via the debug interface even if the security bit is set.

CVE Status: Awaiting Analysis

References:

dc3f6da9-85b5-4a73-84a2-2ec90b40fca5

af854a3a-2127-422b-91ae-364da2661108

Metrics:

Attribute	Value
Attack Complexity	HIGH
Attack Vector	PHYSICAL
Availability Impact	HIGH
Base Score	6.3
Base Severity	MEDIUM
Confidentiality Impact	HIGH
Integrity Impact	HIGH
Privileges Required	NONE
Scope	UNCHANGED
User Interaction	REQUIRED
Vector String	CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability Score	0.4
Impact Score	5.9
Source	dc3f6da9-85b5-4a73-84a2-2ec90b40fca5
Type	Secondary

Links:

Exploit-db
Github