Vulnerability · Published May 6, 2021 · Assigned by mitre

CVE-2021-27941

Medium 4.6

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 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS NVD)4.6Medium

Exploit odds (30 days)0.2%top 88.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Unconstrained Web access to the device's private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process.

Affected products (as reported)

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

References

https://play.google.com/store/apps/details?id=com.coolkit&hl=en_US x_refsource_MISC
https://apps.apple.com/us/app/ewelink-smart-home/id1035163158 x_refsource_MISC
https://github.com/salgio/eWeLink-QR-Code x_refsource_MISC