How to fix CVE-2025-9974?

Within 24 hours: Inventory all ONT/Beacon devices in production and identify those with multiple authenticated users; restrict administrative access to essential personnel only. Within 7 days: Implement network segmentation to isolate affected devices; deploy Web Application Firewall (WAF) rules to block suspicious command patterns in WEBUI requests; disable unused WEBUI features if operationally feasible. Within 30 days: Monitor vendor advisories for patch availability; conduct security assessment of affected systems for signs of compromise; develop incident response plan specific to command injection on these devices.

Is Command Injection affected by CVE-2025-9974?

CVE-2025-9974 affects ONT/Beacon WEBUI devices and allows authenticated users to execute arbitrary system commands, potentially compromising device integrity and network security.

CVE-2025-9974

HIGH

2026-02-02 b48c3b8f-639e-4c16-8725-497bc411dad0

8.0

CVSS 3.1

CVSS Vector

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

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:01 vuln.today

CVE Published

Feb 02, 2026 - 09:15 nvd

HIGH 8.0

Description

The unified WEBUI application of the ONT/Beacon device contains an input handling flaw that allows authenticated users to trigger unintended system-level command execution. Due to insufficient validation of user-supplied data, a low-privileged authenticated attacker may be able to execute arbitrary commands on the underlying ONT/Beacon operating system, potentially impacting the confidentiality, integrity, and availability of the device.

Analysis

The unified WEBUI application of the ONT/Beacon device contains an input handling flaw that allows authenticated users to trigger unintended system-level command execution. [CVSS 8.0 HIGH]

Technical Context

Classified as CWE-78 (OS Command Injection). The unified WEBUI application of the ONT/Beacon device contains an input handling flaw that allows authenticated users to trigger unintended system-level command execution. Due to insufficient validation of user-supplied data, a low-privileged authenticated attacker may be able to execute arbitrary commands on the underlying ONT/Beacon operating system, potentially impacting the confidentiality, integrity, and availability of the device.

Affected Products

The unified WEBUI application of the ONT/Beacon device contains an input handling flaw that allows authenticated users to trigger unintended system-le

Remediation

Monitor vendor advisories for a patch.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.0

CVSS: +40

POC: 0

CVE-2025-9974 vulnerability details – vuln.today

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CVE-2025-9974

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CVE-2025-9974

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Lifecycle Timeline

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Description

Analysis

Technical Context

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