CVE-2026-56413Network attack vector

Root command execution via unsanitized management packets

Published Jun 30, 2026 · Updated Jul 1, 2026

Command injection in StoneFly Storage Concentrator allows remote attackers to execute root commands via network packets. In Storage Concentrator and Storage Concentrator Virtual Machine before 8.0.4.29, ms_service.pl processes custom device-action packets without adequately sanitizing their payloads. Exploitation requires network access to the service, which listens on TCP 9000 by default, but requires neither authentication nor user interaction.

CVSS severity10.0
Critical
EPSS probability4.19%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in StoneFly Storage Concentrator allows remote attackers to execute root commands via network packets. In Storage Concentrator and Storage Concentrator Virtual Machine before 8.0.4.29, ms_service.pl processes custom device-action packets without adequately sanitizing their payloads. Exploitation requires network access to the service, which listens on TCP 9000 by default, but requires neither authentication nor user interaction.

The record

CVE
CVE-2026-56413
Published
Jun 30, 2026
Updated
Jul 1, 2026
Vendor
StoneFly, Inc.
Product
Storage Concentrator
Classifications
CWE-78, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 1, 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 <8.0.4.29

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

StoneFly, Inc. · Storage Concentratorversion=0 <8.0.4.29
StoneFly, Inc. · Storage Concentrator Virtual Machineversion=0 <8.0.4.29

Published CVSS scores

10.0CISACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L
10.0CISACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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.

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-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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