StoneFly Storage Concentrator

Summary

CISA disclosed five critical vulnerabilities in StoneFly Storage Concentrator affecting versions prior to 8.0.4.29, including hardcoded credentials (CVE-2026-50110), OS command injection via ms_service.pl (CVE-2026-56413), unauthenticated remote code execution via debug.pl (CVE-2026-56415), SQL injection via cookies (CVE-2026-55721), and reflected XSS (CVE-2026-50040). The product is deployed worldwide across Defense Industrial Base, Energy, Financial Services, Healthcare, and IT sectors. StoneFly recommends immediate upgrade to version 8.0.4.29 or later to remediate all flaws.

Full text

ICS Advisory StoneFly Storage Concentrator Release DateJune 30, 2026 Alert CodeICSA-26-181-06 Related topics: Industrial Control System Vulnerabilities , Industrial Control Systems View CSAF Summary Successful exploitation of these vulnerabilities could allow attackers to gain broad unauthorized access, execute arbitrary commands with root privileges, steal sensitive data, and perform actions on behalf of legitimate users across interconnected systems. The following versions of StoneFly Storage Concentrator are affected: Storage Concentrator <8.0.4.22 (CVE-2026-56415, CVE-2026-55721, CVE-2026-50040) Storage Concentrator Virtual Machine <8.0.4.22 (CVE-2026-56415, CVE-2026-55721, CVE-2026-50040) Storage Concentrator <8.0.4.26 (CVE-2026-50110) Storage Concentrator Virtual Machine <8.0.4.26 (CVE-2026-50110) Storage Concentrator <8.0.4.29 (CVE-2026-56413) Storage Concentrator Virtual Machine <8.0.4.29 (CVE-2026-56413) CVSS Vendor Equipment Vulnerabilities v3 10 StoneFly StoneFly Storage Concentrator Use of Hard-coded Credentials, Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Background Critical Infrastructure Sectors: Defense Industrial Base, Energy, Financial Services, Healthcare and Public Health, Information Technology Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-50110 Storage Concentrator (SC & SCVM) contains hardcoded credentials for numerous internal services embedded within a configuration file. While the credentials are stored in an encoded format, the encoding can be reversed to plaintext. The exposed credentials span a broad range of internal services, including database accounts, licensing, replication services, and third-party integrations, meaning successful exploitation of this vulnerability could provide an attacker with unauthorized access to multiple interconnected systems. View CVE Details Affected Products StoneFly Storage Concentrator Vendor:StoneFly Product Version:StoneFly Storage Concentrator: <8.0.4.26, StoneFly Storage Concentrator Virtual Machine: <8.0.4.26 Product Status:known_affected Remediations Vendor fixStoneFly recommends that users upgrade to Storage Concentrator version 8.0.4.29 or later to remediate these vulnerabilities. MitigationFor additional questions or support, users may contact StoneFly at https://stonefly.com/contact-us/.https://stonefly.com/contact-us/ Relevant CWE: CWE-798 Use of Hard-coded Credentials Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.2 CRITICAL CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L 4.0 9.3 CRITICAL CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L CVE-2026-56413 Storage Concentrator (SC & SCVM) contains a command injection vulnerability in the ms_service.pl service, which listens on TCP port 9000 by default and accepts custom network packets to perform device actions. An unauthenticated remote attacker can send a specially crafted packet containing a malicious payload that is processed without adequate sanitization, resulting in arbitrary command execution with root-level privileges. View CVE Details Affected Products StoneFly Storage Concentrator Vendor:StoneFly Product Version:StoneFly Storage Concentrator: <8.0.4.29, StoneFly Storage Concentrator Virtual Machine: <8.0.4.29 Product Status:known_affected Remediations Vendor fixStoneFly recommends that users upgrade to Storage Concentrator version 8.0.4.29 or later to remediate these vulnerabilities. MitigationFor additional questions or support, users may contact StoneFly at https://stonefly.com/contact-us/.https://stonefly.com/contact-us/ Relevant CWE: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') Metrics CVSS Version Base Score Base Severity Vector String 3.1 10 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H 4.0 10 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L CVE-2026-56415 Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.pl script that is reachable without authentication. A remote attacker can submit a specially crafted HTTP request containing a malicious payload that is processed without adequate input sanitization, resulting in arbitrary command execution with root-level privileges on the underlying system. View CVE Details Affected Products StoneFly Storage Concentrator Vendor:StoneFly Product Version:StoneFly Storage Concentrator: <8.0.4.22, StoneFly Storage Concentrator Virtual Machine: <8.0.4.22 Product Status:known_affected Remediations Vendor fixStoneFly recommends that users upgrade to Storage Concentrator version 8.0.4.29 or later to remediate these vulnerabilities. MitigationFor additional questions or support, users may contact StoneFly at https://stonefly.com/contact-us/.https://stonefly.com/contact-us/ Relevant CWE: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') Metrics CVSS Version Base Score Base Severity Vector String 3.1 10 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H 4.0 10 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L CVE-2026-55721 Storage Concentrator (SC & SCVM) is vulnerable to SQL injection through cookie values processed by the login.pl and debug.pl scripts. The cookie value is incorporated directly into database queries without adequate sanitization, allowing an unauthenticated remote attacker to manipulate those queries and extract sensitive information from the underlying database, including session tokens, password hashes, and stored secret keys. View CVE Details Affected Products StoneFly Storage Concentrator Vendor:StoneFly Product Version:StoneFly Storage Concentrator: <8.0.4.22, StoneFly Storage Concentrator Virtual Machine: <8.0.4.22 Product Status:known_affected Remediations Vendor fixStoneFly recommends that users upgrade to Storage Concentrator version 8.0.4.29 or later to remediate these vulnerabilities. MitigationFor additional questions or support, users may contact StoneFly at https://stonefly.com/contact-us/.https://stonefly.com/contact-us/ Relevant CWE: CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.3 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N 4.0 9.2 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N CVE-2026-50040 Storage Concentrator (SC & SCVM) is vulnerable to reflected cross-site scripting (XSS) due to unsanitized content being echoed back in 404 error pages. An attacker can craft a malicious URL that, when visited by an authenticated user, causes arbitrary script content to execute within the victim's browser session in the context of the application. This could be leveraged to steal session cookies, redirect users, or perform unauthorized actions on behalf of the victim. View CVE Details Affected Products StoneFly Storage Concentrator Vendor:StoneFly Product Version:StoneFly Storage Concentrator: <8.0.4.22, StoneFly Storage Concentrator Virtual Machine: <8.0.4.22 Product Status:known_affected Remediations Vendor fixStoneFly recommends that users upgrade to Storage Concentrator version 8.0.4.29 or later to remediate these vulnerabilities. MitigationFor additional questions or support, users may contact StoneFly at https://stonefly.com/contact-us/.https://stonefly.com/contact-us/ Relevant CWE: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.1 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N 4.0 5.1 MEDIUM CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N Acknowledgments David Yesland o

Indicators of Compromise

• cve — CVE-2026-50110
• cve — CVE-2026-56413
• cve — CVE-2026-56415
• cve — CVE-2026-55721
• cve — CVE-2026-50040

Entities