CVE-2025-63213

CriticalPublic PoC

Published: 19 November 2025

Published

19 November 2025

Modified

15 January 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 0.0050 66.1th percentile

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

Summary

CVE-2025-63213 is a critical-severity Improper Input Validation (CWE-20) vulnerability in Qvidium Opera11 Firmware. 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 33.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

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 improper input validation flaw (CWE-20) in the /cgi-bin/net_ping.cgi endpoint that enables command injection and RCE.

SI-2 Flaw Remediation good match

preventrecover

Requires timely flaw remediation through firmware patching or updates to eliminate the specific RCE vulnerability in version 2.9.0-Ax4x-opera11.

SC-7 Boundary Protection partial match

prevent

Enforces network boundary protections such as firewalls or WAFs to block unauthorized remote access to the vulnerable CGI endpoint.

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?

Unauthenticated RCE via command injection in public-facing CGI endpoint (/cgi-bin/net_ping.cgi) directly enables T1190 (Exploit Public-Facing Application) and facilitates T1059.004 (Unix Shell) execution with root privileges.

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

NVD Description

The QVidium Opera11 device (firmware version 2.9.0-Ax4x-opera11) is vulnerable to Remote Code Execution (RCE) due to improper input validation on the /cgi-bin/net_ping.cgi endpoint. An attacker can exploit this vulnerability by sending a specially crafted GET request with a malicious parameter…

to inject arbitrary commands. These commands are executed with root privileges, allowing attackers to gain full control over the device. This poses a significant security risk to any device running this software.

Deeper analysisAI

CVE-2025-63213 is a critical Remote Code Execution (RCE) vulnerability in the QVidium Opera11 device running firmware version 2.9.0-Ax4x-opera11. It arises from improper input validation (CWE-20) in the /cgi-bin/net_ping.cgi endpoint, earning 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). Published on 2025-11-19, the flaw allows attackers to inject and execute arbitrary commands directly on the device.

An unauthenticated remote attacker can exploit this vulnerability over the network with low complexity and no user interaction required. By sending a specially crafted GET request with a malicious parameter to the vulnerable endpoint, the attacker triggers command injection executed with root privileges, resulting in full control over the device and significant security risks to affected systems.

Advisories and further details are available through referenced sources, including the vendor site at https://qvidium.tv/, a proof-of-concept repository at https://github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-63213_QVidium%20Opera11%20RCE, and an analysis at https://undercodetesting.com/zero-day-vulnerabilities-discovered-in-qvidium-opera11-remote-code-execution-rce-exploit/. These provide exploit demonstrations but no specific patch or mitigation steps are detailed in the initial CVE description.