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CVE-2025-41392: Out-of-Bounds Read Vulnerability in Ashlar-Vellum Products

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Overview

A significant vulnerability has been identified in multiple software applications developed by Ashlar-Vellum. If exploited, this vulnerability could allow an attacker to execute arbitrary code in the context of the current process, potentially leading to a system compromise or data leakage. It is crucial for organizations using these applications to understand and address this vulnerability promptly.

Vulnerability Summary

CVE ID: CVE-2025-41392
Severity: High (CVSS: 7.8)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System compromise or data leakage possible

Affected Products

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Product | Affected Versions

Ashlar-Vellum Cobalt | Prior to 12.6.1204.204
Ashlar-Vellum Xenon | Prior to 12.6.1204.204
Ashlar-Vellum Argon | Prior to 12.6.1204.204
Ashlar-Vellum Lithium | Prior to 12.6.1204.204
Ashlar-Vellum Cobalt Share | Prior to 12.6.1204.204

How the Exploit Works

The vulnerability arises from improper validation of user-supplied data when parsing AR files in the affected applications. This flaw could be leveraged by an attacker to cause an out-of-bounds read, thereby creating an opening for arbitrary code execution in the context of the current process.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited:

POST /api/parse_ar HTTP/1.1
Host: target.example.com
Content-Type: application/ar
{ "ar_file": "malicious_file.ar" }

In this example, a malicious AR file is sent to the server. If the server is running a vulnerable version of the Ashlar-Vellum software, it could potentially parse the file without proper validation and lead to an out-of-bounds read, thereby exposing the system to potential compromise.

Mitigation Guidance

Users are advised to apply the vendor patch to fix this vulnerability. In situations where immediate patching is not possible, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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