Atsama5D21C Cu Firmware
CVE-2020-12789
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
1DescriptionNVD
The Secure Monitor in Microchip Atmel ATSAMA5 products use a hardcoded key to encrypt and authenticate secure applets.
AnalysisAI
The Secure Monitor in Microchip Atmel ATSAMA5 products use a hardcoded key to encrypt and authenticate secure applets. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Use of Hard-coded Credentials (CWE-798), which allows attackers to gain access using credentials embedded in source code. The Secure Monitor in Microchip Atmel ATSAMA5 products use a hardcoded key to encrypt and authenticate secure applets. Affected products include: Microchip Atsama5D21C-Cu Firmware, Microchip Atsama5D21C-Cur Firmware, Microchip Atsama5D22C-Cn Firmware, Microchip Atsama5D22C-Cnr Firmware, Microchip Atsama5D22C-Cu Firmware.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Remove hard-coded credentials, use environment variables or secrets management, rotate exposed credentials immediately.
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Microchip Atmel ATSAMA5 products in Secure Mode allow an attacker to bypass existing security mechanisms related to appl
Same weakness CWE-798 – Use of Hard-coded Credentials
View allSame technique Authentication Bypass
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External POC / Exploit Code
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