CVE-2021-27941
MEDIUM
4.6
CVSS Score
Published: May 6, 2021 at 08:31 PM UTC
Updated: June 17, 2026 at 03:45 AM UTC
1 product affected across 1 vendorEwelink
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Severity
MEDIUM4.6
Exploit prediction
EPSS 0.2%
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (3)
x_refsource_MISCProductThird Party Advisory
Source: [email protected]
https://apps.apple.com/us/app/ewelink-smart-home/id1035163158x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/salgio/eWeLink-QR-Codex_refsource_MISCProductThird Party Advisory
Source: [email protected]
https://play.google.com/store/apps/details?id=com.coolkit&hl=en_USCVSS
- Attack Vector
- PHYSICAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-522
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