CVE-2021-27941 describes a vulnerability in the eWeLink mobile application (Android through 4.9.2, iOS through 4.9.1) that allows unconstrained web access to a device's private encryption key during QR code pairing. A physically proximate attacker can exploit this by monitoring Wi-Fi spectrum during device pairing to eavesdrop on Wi-Fi credentials and other sensitive information. Rated as Medium severity (CVSS 4.6), this vulnerability requires physical proximity and low attack complexity, with a high impact on confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.9.1CPE matchmatch criteria | cpe:2.3:a:coolkit:ewelink:*:*:*:*:*:iphone_os:*:* | ||
<= 4.9.2CPE matchmatch criteria | cpe:2.3:a:coolkit:ewelink:*:*:*:*:*:android:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.