Cyber Resilience

CVE-2026-56415

CriticalRCE

Published: 30 June 2026

Published
30 June 2026
Modified
01 July 2026
KEV Added
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Patch
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CVSS Score v4 10.0 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0307 86.1th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-56415 is a critical-severity OS Command Injection (CWE-78) vulnerability in Stonefly (inferred from references). Its CVSS base score is 10.0 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 13.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

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,…

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resulting in arbitrary command execution with root-level privileges on the underlying system.

CWE(s)
CWE-78

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
Why these techniques?

Unauthenticated command injection in public-facing debug.pl script directly enables remote exploitation of a web application (T1190) resulting in arbitrary OS command execution (T1059).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-0255Shared CWE-78
CVE-2025-8748Shared CWE-78
CVE-2026-30806Shared CWE-78
CVE-2025-0457Shared CWE-78
CVE-2026-26191Shared CWE-78
CVE-2025-54987Shared CWE-78
CVE-2026-28291Shared CWE-78
CVE-2024-22836Shared CWE-78
CVE-2025-31692Shared CWE-78
CVE-2026-28409Shared CWE-78

Affected Assets

Stonefly
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inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References