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CVE-2025-58776: High-Risk Stack-Based Buffer Overflow Vulnerability in KV Studio

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Overview

Recent research on cybersecurity vulnerabilities has marked the CVE-2025-58776 as a critical risk for KV Studio versions 12.23 and prior. This stack-based buffer overflow vulnerability makes it possible for an attacker to execute arbitrary code on the affected product. The severity and potential impact of this vulnerability underline the importance of immediate remediation actions, especially considering the potential system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-58776
Severity: High (7.8 CVSS)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: System compromise or data leakage

Affected Products

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Product | Affected Versions

KV Studio | 12.23 and prior

How the Exploit Works

The exploit works by creating a specially crafted file that, when used by the product, causes a stack-based buffer overflow. This overflow can lead to arbitrary code execution by an attacker. The exploitation can lead to a full system compromise or data leakage, depending on the privileges of the targeted system and the malicious intent of the attacker.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. In this case, the malicious payload is represented in a random string.

POST /openFile HTTP/1.1
Host: vulnerableKVStudio.com
Content-Type: application/octet-stream
{ "file_data": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA..."}

In this simplified example, the “file_data” field is filled with a large amount of data, represented by “A”s. If this data exceeds the buffer size of the stack where it’s stored, it could lead to an overflow, potentially allowing the execution of arbitrary code.
Note: This is a simplified hypothetical example and the real exploit could involve complex and specific crafted data.

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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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