Cyber Resilience

CVE-2025-31951

HighRCE

Published: 06 May 2026

Published
06 May 2026
Modified
06 May 2026
KEV Added
—
Patch
—
CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0025 16.0th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2025-31951 is a high-severity Command Injection (CWE-77) vulnerability in Hcl Software (inferred from references). Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 16.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2025-31951 is a Unvalidated Command Input / Potential Command Smuggling vulnerability affecting HCL BigFix RunBookAI. A flaw in a component's input handling was identified that could permit unauthorized command execution. The vulnerability has a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) and is associated with CWE-77, CWE-351, and CWE-451.

The vulnerability can be exploited remotely over the network with low complexity by authenticated users possessing low privileges, without requiring user interaction. Successful exploitation enables attackers to execute unauthorized commands, resulting in high impacts to confidentiality, integrity, and availability.

Mitigation details are available in the HCL Software advisory at https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0130444.

OWASP Top 10 for Web (2025)

A05:2025 InjectionA06:2025 Insecure Design

EU & UK References

Vulnerability details

HCL BigFix RunBookAI is affected by a Unvalidated Command Input / Potential Command Smuggling vulnerability. A flaw in a component's input handling was identified that could permit unauthorized command execution.

CWE(s)
CWE-77CWE-351CWE-451

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?

CVE describes remote command injection (CWE-77) in a network-exposed component, directly enabling T1190 (Exploit Public-Facing Application) for initial access and T1059 (Command and Scripting Interpreter) for arbitrary command execution.

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

CVEs Like This One

CVE-2026-44869Shared CWE-77
CVE-2026-44866Shared CWE-77
CVE-2025-57685Shared CWE-77
CVE-2025-60021Shared CWE-77
CVE-2026-2333Shared CWE-77
CVE-2025-67728Shared CWE-77
CVE-2025-24818Shared CWE-77
CVE-2024-54794Shared CWE-77
CVE-2025-60801Shared CWE-77
CVE-2025-55294Shared CWE-77

Affected Assets

Hcl Software
—
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly requires validation of information inputs to prevent unvalidated command input vulnerabilities like command injection and smuggling in HCL BigFix RunBookAI.

SI-2 Flaw Remediation good match
prevent

Mandates timely flaw remediation, directly addressing the specific input handling defect permitting unauthorized command execution as detailed in the HCL advisory.

AC-6 Least Privilege partial match
prevent

Enforces least privilege to restrict the scope and impact of unauthorized commands executed by low-privilege users exploiting the vulnerability.

References