CVE-2020-12789
The Secure Monitor in Microchip Atmel ATSAMA5 products use a hardcoded key to encrypt and...
The Secure Monitor in Microchip Atmel ATSAMA5 products use a hardcoded key to encrypt and authenticate secure applets.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The Secure Monitor in Microchip Atmel ATSAMA5 products use a hardcoded key to encrypt and authenticate secure applets.
- Record
CVE-2020-12789- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-798
- Updated
- 2026-11-02
CVE List No score
The Secure Monitor in Microchip Atmel ATSAMA5 products use a hardcoded key to encrypt and authenticate secure applets.
- Record
CVE-2020-12789- Updated
- 2026-11-02
EUVDEUVD-2020-5074 No score
The Secure Monitor in Microchip Atmel ATSAMA5 products use a hardcoded key to encrypt and authenticate secure applets.
- Record
EUVD-2020-5074- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fhhq-g694-vvfc No score
The Secure Monitor in Microchip Atmel ATSAMA5 products use a hardcoded key to encrypt and...
The Secure Monitor in Microchip Atmel ATSAMA5 products use a hardcoded key to encrypt and authenticate secure applets.
- Record
GHSA-fhhq-g694-vvfc- Updated
- 2026-11-02
Affected products
- microchip atsama5d21c-cu firmware
- microchip atsama5d21c-cur firmware
- microchip atsama5d225c-d1m-cur firmware
- microchip atsama5d22c-cn firmware
- microchip atsama5d22c-cnr firmware
- microchip atsama5d22c-cu firmware
- microchip atsama5d22c-cur firmware
- microchip atsama5d23c-cn firmware
- microchip atsama5d23c-cnr firmware
- microchip atsama5d23c-cu firmware
- microchip atsama5d23c-cur firmware
- microchip atsama5d24c-cu firmware
Show 64 moreShow less
- microchip atsama5d24c-cuf firmware
- microchip atsama5d24c-cur firmware
- microchip atsama5d26c-cn firmware
- microchip atsama5d26c-cnr firmware
- microchip atsama5d26c-cu firmware
- microchip atsama5d26c-cur firmware
- microchip atsama5d27-som1 firmware
- microchip atsama5d27-wlsom1 firmware
- microchip atsama5d27c-cn firmware
- microchip atsama5d27c-cnr firmware
- microchip atsama5d27c-cnrvao firmware
- microchip atsama5d27c-cnvao firmware
- microchip atsama5d27c-cu firmware
- microchip atsama5d27c-cur firmware
- microchip atsama5d27c-d1g-cu firmware
- microchip atsama5d27c-d1g-cur firmware
- microchip atsama5d27c-d5m-cu firmware
- microchip atsama5d27c-d5m-cur firmware
- microchip atsama5d27c-ld1g-cu firmware
- microchip atsama5d27c-ld1g-cur firmware
- microchip atsama5d27c-ld2g-cu firmware
- microchip atsama5d27c-ld2g-cur firmware
- microchip atsama5d28c-cn firmware
- microchip atsama5d28c-cnr firmware
- microchip atsama5d28c-cu firmware
- microchip atsama5d28c-cur firmware
- microchip atsama5d28c-d1g-cu firmware
- microchip atsama5d28c-d1g-cur firmware
- microchip atsama5d28c-ld1g-cu firmware
- microchip atsama5d28c-ld1g-cur firmware
- microchip atsama5d28c-ld2g-cu firmware
- microchip atsama5d28c-ld2g-cur firmware
- microchip atsama5d31a-cfu firmware
- microchip atsama5d31a-cfur firmware
- microchip atsama5d31a-cu firmware
- microchip atsama5d31a-cur firmware
- microchip atsama5d33a-cu firmware
- microchip atsama5d33a-cur firmware
- microchip atsama5d34a-cu firmware
- microchip atsama5d34a-cur firmware
- microchip atsama5d35a-cn firmware
- microchip atsama5d35a-cnr firmware
- microchip atsama5d35a-cu firmware
- microchip atsama5d35a-cur firmware
- microchip atsama5d36a-cn firmware
- microchip atsama5d36a-cnr firmware
- microchip atsama5d36a-cu firmware
- microchip atsama5d36a-cur firmware
- microchip atsama5d41a-cu firmware
- microchip atsama5d41a-cur firmware
- microchip atsama5d41b-cu firmware
- microchip atsama5d41b-cur firmware
- microchip atsama5d42a-cu firmware
- microchip atsama5d42a-cur firmware
- microchip atsama5d42b-cu firmware
- microchip atsama5d42b-cur firmware
- microchip atsama5d43a-cu firmware
- microchip atsama5d43a-cur firmware
- microchip atsama5d43b-cu firmware
- microchip atsama5d43b-cur firmware
- microchip atsama5d44a-cu firmware
- microchip atsama5d44a-cur firmware
- microchip atsama5d44b-cu firmware
- microchip atsama5d44b-cur firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-12789 is a high vulnerability (CVSS 7.5) in Microchip Atsama5d21c-cu Firmware, published September 14, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.23%, the 69th percentile. No source names a fixed version.