CVE-2020-12788

high-risk
Published 2020-09-14

CMAC verification functionality in Microchip Atmel ATSAMA5 products is vulnerable to vulnerable to timing and power analysis attacks.

Do I need to act?

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0.32% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (20)

Atsama5D21C-Cu Firmware
Atsama5D21C-Cur Firmware
Atsama5D22C-Cn Firmware
Atsama5D22C-Cnr Firmware
Atsama5D22C-Cu Firmware
Atsama5D22C-Cur Firmware
Atsama5D23C-Cn Firmware
Atsama5D23C-Cnr Firmware
Atsama5D23C-Cu Firmware
Atsama5D23C-Cur Firmware
Atsama5D24C-Cu Firmware
Atsama5D24C-Cuf Firmware
Atsama5D24C-Cur Firmware
Atsama5D26C-Cn Firmware
Atsama5D26C-Cnr Firmware
Atsama5D26C-Cu Firmware
Atsama5D26C-Cur Firmware
Atsama5D27C-Cn Firmware
Atsama5D27C-Cnr Firmware
Atsama5D27C-Cu Firmware

Affected Vendors

Microchip

References (2)

Third Party Advisory https://labs.f-secure.com/advisories/microchip-atsama5-soc-multiple-vulnerabilit...
Third Party Advisory https://labs.f-secure.com/advisories/microchip-atsama5-soc-multiple-vulnerabilit...
55
/ 100
high-risk
Severity 26/34 · High
Exploitability 1/34 · Minimal
Exposure 28/34 · Critical