CVE-2026-93291 PUBLISHED

Improper certificate validation in Eufy Omni C20

Assigner: icscert
Reserved: 17.09.2026 Published: 24.09.2026 Updated: 24.09.2026

Omni C20 lacks proper certificate validation which could allow an attacker to perform a man-in-the-middle attack which could allow them to execute arbitrary code.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
CVSS Score: 9.4

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	Eufy
Product	Omni C20
Versions	Default: unaffected affected from 0 to 1.6.4 (excl.)

Solutions

Eufy recommends users to upgrade to version 1.6.4 or later.

Credits

Jared of Somerset Recon reported these vulnerabilities to CISA. finder

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-267-02

Problem Types

CWE-295 Improper certificate validation CWE