CVE-2025-1041: Critical Improper Input Validation Vulnerability in Avaya Call Management System

Overview

This article details the CVE-2025-1041 vulnerability discovered in Avaya Call Management System. This critical flaw allows unauthorized remote commands via a specially crafted web request, potentially leading to system compromise or data leakage. With a CVSS Severity Score of 9.9, this vulnerability is of serious concern to anyone running the affected versions of the Avaya Call Management System. It is critical for system administrators to understand the details of this vulnerability, apply the necessary patches, or implement the recommended temporary mitigations to secure their systems.

Vulnerability Summary

CVE ID: CVE-2025-1041
Severity: Critical (CVSS: 9.9)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

Avaya Call Management System | 18.x
Avaya Call Management System | 19.x up to 19.2.0.6
Avaya Call Management System | 20.x up to 20.0.0.9

How the Exploit Works

The exploit takes advantage of an improper input validation in the Avaya Call Management System. An attacker crafts a malicious web request, which can bypass the input validation mechanisms of the system. This allows the attacker to inject unauthorized remote commands, leading to potential system compromise and data leakage. This attack can be performed over the network, and doesn’t require any user interaction or special privileges.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. This is a sample HTTP request that an attacker could use to deliver a malicious payload:

POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "<command>" }

In this example, `` would be replaced with the attacker’s unauthorized command. Please note, this is a theoretical example and not an actual exploit code.

Mitigation Guidance

Avaya has released patches to address this vulnerability. Users of affected versions are strongly urged to apply the patches immediately. If patching is currently not possible, users can employ a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as a temporary mitigation measure. However, these measures are not foolproof and only serve as a stopgap until patches can be applied. Always prioritize patching and regularly update your systems to prevent potential exploits.