Vulnerability · Published May 21, 2021 · Assigned by mitre

CVE-2020-27211

Medium 5.7

In plain English

A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).

Severity (CVSS NVD)5.7Medium

Exploit odds (30 days)0.3%top 77.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Nordic Semiconductor nRF52840 devices through 2020-10-19 have improper protection against physical side channels. The flash read-out protection (APPROTECT) can be bypassed by injecting a fault during the boot phase.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://www.aisec.fraunhofer.de/en/FirmwareProtection.html x_refsource_MISC
https://eprint.iacr.org/2021/640 x_refsource_MISC
https://limitedresults.com/2020/06/nrf52-debug-resurrection-approtect-bypass/ x_refsource_MISC
https://infocenter.nordicsemi.com/pdf/in_133_v1.0.pdf x_refsource_MISC
https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html x_refsource_MISC