CVE-2025-50475

CriticalRCE

Published: 31 July 2025

Published

31 July 2025

Modified

15 April 2026

KEV Added

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Patch

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CVSS Score 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0049 65.8th percentile

Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-50475 is a critical-severity OS Command Injection (CWE-78) vulnerability in Pastebin (inferred from references). Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 34.2% of CVEs by exploit likelihood; 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).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Directly mitigates the OS command injection by requiring validation of the hostname parameter to neutralize special elements before use in system commands.

SI-2 Flaw Remediation good match

prevent

Addresses the specific flaw in firmware version 3.1.6 through timely installation of security patches to remediate the vulnerability.

SI-9 Information Input Restrictions good match

prevent

Restricts hostname inputs to safe, organization-defined formats, preventing crafted payloads that enable arbitrary command execution.

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 →

Why these techniques?

OS command injection in network-exposed firmware handler directly enables remote exploitation of a public-facing device (T1190) and arbitrary Unix shell command execution as root (T1059.004).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

An OS command injection vulnerability exists in Russound MBX-PRE-D67F firmware version 3.1.6, allowing unauthenticated attackers to execute arbitrary commands as root via crafted input to the hostname parameter in network configuration requests. This vulnerability stems from improper neutralization of special…

elements used in an OS command within the network configuration handler, enabling remote code execution with the highest privileges.

Deeper analysisAI

CVE-2025-50475 is an OS command injection vulnerability (CWE-78) affecting Russound MBX-PRE-D67F firmware version 3.1.6. The issue resides in the network configuration handler, where improper neutralization of special elements used in an OS command allows crafted input to the hostname parameter in network configuration requests to enable execution of arbitrary commands as root. Published on 2025-07-31, it carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), reflecting its critical severity due to remote code execution potential with highest privileges.

Unauthenticated attackers can exploit this vulnerability remotely over the network with low complexity and no user interaction required. By submitting specially crafted hostname values in network configuration requests, they achieve arbitrary command execution as root, granting full control over the affected device for confidentiality, integrity, and availability impacts.

Advisories providing further details, including potential mitigation steps, are available at the following references: https://drive.google.com/file/d/1ZmZHzJKU-nrhFXd9w94aiGXYYYldtmni/view?usp=sharing, https://pastebin.com/ic8hkC5V, and https://pastebin.com/raw/0U6F55G5.