Atsama5D21C Cu Firmware
CVE-2020-12788
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
CMAC verification functionality in Microchip Atmel ATSAMA5 products is vulnerable to vulnerable to timing and power analysis attacks.
AnalysisAI
CMAC verification functionality in Microchip Atmel ATSAMA5 products is vulnerable to vulnerable to timing and power analysis attacks. 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 under CWE-203. CMAC verification functionality in Microchip Atmel ATSAMA5 products is vulnerable to vulnerable to timing and power analysis attacks. 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. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
More in Atsama5D21C Cu Firmware
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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-203 – Observable Discrepancy
View allSame technique Information Disclosure
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External POC / Exploit Code
Leaving vuln.today