CVE-2026-5944Network attack vector

Metadata disclosure and VM reboots via unauthenticated API

Published Apr 28, 2026 · Updated Apr 28, 2026

Missing authentication in Cisco Intersight Device Connector 4.3.0 through 7.5.0 allows remote attackers to access cluster APIs. The TCP port 7373 API passthrough accepts requests without authentication or authorization, exposing cluster and virtual machine metadata and maintenance calls. Network access to an enabled connector is required; unauthorized maintenance calls can reboot virtual machines and interrupt active workloads.

CVSS severity8.2
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Cisco Intersight Device Connector 4.3.0 through 7.5.0 allows remote attackers to access cluster APIs. The TCP port 7373 API passthrough accepts requests without authentication or authorization, exposing cluster and virtual machine metadata and maintenance calls. Network access to an enabled connector is required; unauthorized maintenance calls can reboot virtual machines and interrupt active workloads.

The record

CVE
CVE-2026-5944
Published
Apr 28, 2026
Updated
Apr 28, 2026
Vendor
ClamAV
Product
Cisco Intersight Device Connector for Nutanix Prism Central
Classifications
CWE-862, CWE-306, T1580, T1529
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=4.3.0 <7.5.1 changes=[{"at":"7.5.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Intersight Device Connector for Nutanix Prism Centralversion=4.3.0 <7.5.1 changes=[{"at":"7.5.1","status":"unaffected"}]

Published CVSS scores

6.7NutanixCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
8.5NutanixAV:N/AC:L/Au:N/C:P/I:N/A:C
8.2NutanixCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
CWE-306Missing Authentication for Critical Function
T1580Cloud Infrastructure Discovery
T1529System Shutdown/Reboot

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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