CVE-2021-26638

S\&D Smarthome vulnerability

CVSS

7.3

EPSS

3.4%

EPSS pct

88th

Exploited

No known

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.

Affected vendor

Xisnd

Affected product

S\&D Smarthome

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Weakness type (CWE)

CWE-287 — Improper Authentication

Published

2022-06-23

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable from an adjacent network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity.

Its EPSS score of 3.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2021-26638

Confirm whether Xisnd S\&D Smarthome is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-26638.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-26638

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