CVE-2026-93291Network attack vector

Remote code execution via improper certificate validation

Published Sep 24, 2026 · Updated Sep 24, 2026

Improper certificate validation in Eufy Robot Vacuum Omni C20 before 1.6.4 allows remote attackers to execute arbitrary code via a MitM attack. The device's certificate-validation path fails to reliably authenticate the remote endpoint, allowing intercepted traffic to be supplied by an attacker-controlled peer. Exploitation requires a network position that permits traffic interception; success runs attacker-controlled code on the appliance.

CVSS severity9.3
Critical
EPSS probability0.24%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in Eufy Robot Vacuum Omni C20 before 1.6.4 allows remote attackers to execute arbitrary code via a MitM attack. The device's certificate-validation path fails to reliably authenticate the remote endpoint, allowing intercepted traffic to be supplied by an attacker-controlled peer. Exploitation requires a network position that permits traffic interception; success runs attacker-controlled code on the appliance.

The record

CVE
CVE-2026-93291
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
Eufy
Product
Eufy Robot Vacuum Omni C20
Classifications
CWE-295, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Eufy · Eufy Robot Vacuum Omni C20version=0 <1.6.4

Published CVSS scores

9.3CISA ICS-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
9.4CISA ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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