CVE-2025-24311: Critical Out-of-Bounds Read Vulnerability in Dell ControlVault3

Overview

The cybersecurity domain is continuously plagued by various vulnerabilities, and one such recently discovered vulnerability is CVE-2025-24311. This critical flaw impacts Dell ControlVault3, a security hardware and software solution that is widely used for securing sensitive user data. The vulnerability is significant due to the risk it poses to the confidentiality of data, potentially leading to unauthorized information disclosure and even system compromise.
This issue, an out-of-bounds read vulnerability, exists in the cv_send_blockdata functionality of Dell ControlVault3. It is a serious concern for organizations that rely on this solution for their security needs, as exploiting this vulnerability can lead to severe consequences. Understanding the nature of this vulnerability, its potential impact, and the steps needed for mitigation is crucial for maintaining a robust security posture.

Vulnerability Summary

CVE ID: CVE-2025-24311
Severity: Critical – CVSS 8.4
Attack Vector: ControlVault API call
Privileges Required: Low
User Interaction: None
Impact: Information leak, potential system compromise

Affected Products

Product | Affected Versions

Dell ControlVault3 | Prior to 5.15.10.14
Dell ControlVault3 Plus | Prior to 6.2.26.36

How the Exploit Works

The vulnerability arises from a flaw in the cv_send_blockdata functionality of Dell ControlVault3. A malicious actor can craft a specific ControlVault API call to trigger an out-of-bounds read. This vulnerability, when exploited, results in an information leak.
The out-of-bounds read error occurs when the software reads data past the end, or before the beginning, of the intended boundary. This can result in the exposure of sensitive information from other memory locations or cause the application to crash.

Conceptual Example Code

Here is a conceptual example of how an attacker might exploit this vulnerability. This pseudo-code represents the malicious ControlVault API call:

POST /cv_send_blockdata HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "block_data": "buffer_overflow_string" }

In this example, the “buffer_overflow_string” is crafted to force the software to read beyond the intended memory area, triggering the vulnerability and causing an information leak.

Mitigation

Dell has released patches for the affected versions of ControlVault3. Organizations using Dell ControlVault3 should immediately update their software to the latest version to avoid potential exploitation of this vulnerability. If immediate patching is not feasible, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation, but they do not replace the need for patching.
Remember, staying vigilant and keeping your systems updated is the best defense against most cybersecurity threats.