Cyber Resilience

CVE-2026-56688

RCE in Dell Powerflex Manager 4.5.5 – 4.5.5.2

RCECommand Injection
Published
10 July 2026
Modified
16 July 2026
Patch / advisory
View advisory
CVSS Score v3.1 9.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.012 65th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-56688 is a critical-severity OS Command Injection (CWE-78) vulnerability in Dell Powerflex Manager. Its CVSS base score is 9.1 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 35% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-6 (Least Privilege) and CM-7 (Least Functionality) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

Dell PowerFlex Manager, Version prior to 5.1.0.1, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability during OS Repository processing to…

more

achieve arbitrary command execution as root, potentially leading to full appliance compromise and lateral movement into managed infrastructure.

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 →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
Why these techniques?

OS command injection in a remotely accessible management interface (PowerFlex Manager) directly enables remote code execution as root (T1190), Unix shell command execution (T1059.004), and privilege escalation to root (T1068).

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

CVEs Like This One

CVE-2026-53479Same vendor: Dell
CVE-2025-36599Same product: Dell Powerflex Manager
CVE-2026-35072Same vendor: Dell
CVE-2026-35073Same vendor: Dell
CVE-2025-24386Same vendor: Dell
CVE-2025-24382Same vendor: Dell
CVE-2024-49563Same vendor: Dell
CVE-2026-49814Same vendor: Dell
CVE-2024-49564Same vendor: Dell
CVE-2026-53478Same vendor: Dell

Affected Assets

dell
powerflex manager
4.5.5 — 4.5.5.2 · 5.1.0 — 5.1.0.1

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AC-6 Least Privilege
  • CM-7 Least Functionality
  • SI-2 Flaw Remediation
Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.5
  • V1.2.8
  • V15.2.5

Mitigating Controls (NIST 800-53 r5) AI

AC-6 Least Privilege good match
prevent

Least-privilege enforcement limits the high-privileged account that the CVE states is required for OS Repository command injection.

CM-7 Least Functionality good match
prevent

Least-functionality disables or removes the OS Repository processing feature that the attacker abuses to inject OS commands.

SI-2 Flaw Remediation good match
prevent

Timely patching of the Dell PowerFlex Manager to version 5.1.0.1 or later eliminates the OS command-injection flaw.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.

PR.PS-02 partial match
prevents

Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (none reverse).

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
detects

Security testing and code review target insecure use of operating-system command interfaces, catching command-injection flaws introduced during development.

References