CVE-2020-12788
CMAC verification functionality in Microchip Atmel ATSAMA5 products is vulnerable to vulnerable...
CMAC verification functionality in Microchip Atmel ATSAMA5 products is vulnerable to vulnerable to timing and power analysis attacks.
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
CMAC verification functionality in Microchip Atmel ATSAMA5 products is vulnerable to vulnerable to timing and power analysis attacks.
- Record
CVE-2020-12788- 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
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-203
- Updated
- 2026-11-02
CVE List No score
CMAC verification functionality in Microchip Atmel ATSAMA5 products is vulnerable to vulnerable to timing and power analysis attacks.
- Record
CVE-2020-12788- Updated
- 2026-11-02
EUVDEUVD-2020-5073 No score
CMAC verification functionality in Microchip Atmel ATSAMA5 products is vulnerable to vulnerable to timing and power analysis attacks.
- Record
EUVD-2020-5073- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7pq8-3c67-xq6r No score
CMAC verification functionality in Microchip Atmel ATSAMA5 products is vulnerable to vulnerable...
CMAC verification functionality in Microchip Atmel ATSAMA5 products is vulnerable to vulnerable to timing and power analysis attacks.
- Record
GHSA-7pq8-3c67-xq6r- 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-2020-12788 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 1.34%, the 71st percentile. No source names a fixed version.