CVE-2026-56415

CRITICAL 10.0

OS Command Injection in StoneFly Storage Concentrator

CVSS Score

10.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-78
Vendor	stonefly
Product	storage concentrator
Published	Jun 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Stonefly / Storage Concentrator

0 < 8.0.4.22

Stonefly / Storage Concentrator Virtual Machine

0 < 8.0.4.22

References

NVD ↗ CVE.org ↗ EPSS Data ↗

cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-181-06 github.com: https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-181-06.json stonefly.com: https://stonefly.com/contact-us/

Credits

🔍 David Yesland of Rhino Security Labs reported this vulnerability to CISA.