CVE-2019-25474 Overview
Easy MP3 Downloader version 4.7.8.8 contains a buffer overflow vulnerability (CWE-787: Out-of-bounds Write) that allows local attackers to crash the application by supplying an excessively long unlock code. This vulnerability can be triggered by generating a file containing 6000 'A' characters and pasting the contents into the Unlock Code field during application startup, resulting in a denial of service condition.
Critical Impact
Local attackers can cause a denial of service by crashing the Easy MP3 Downloader application through a buffer overflow triggered by an oversized unlock code input.
Affected Products
- Easy MP3 Downloader 4.7.8.8
Discovery Timeline
- 2026-03-11 - CVE CVE-2019-25474 published to NVD
- 2026-03-12 - Last updated in NVD database
Technical Details for CVE-2019-25474
Vulnerability Analysis
This vulnerability is classified as an Out-of-bounds Write (CWE-787), where the application fails to properly validate the length of user-supplied input in the Unlock Code field. When a user pastes an excessively long string (approximately 6000 characters) into this field during application startup, the application writes data beyond the boundaries of the allocated buffer. This memory corruption leads to an application crash, resulting in a denial of service condition.
The attack requires local access to the system where Easy MP3 Downloader is installed. No authentication is required to exploit this vulnerability, and user interaction is not necessary beyond the initial input of the malformed unlock code. The vulnerability affects only the availability of the application—there is no impact to confidentiality or integrity.
Root Cause
The root cause of this vulnerability lies in improper input validation within the Easy MP3 Downloader application. The Unlock Code field does not enforce adequate bounds checking on the length of input data. When the application processes the unlock code during startup, it copies the user-supplied string into a fixed-size buffer without verifying that the input length does not exceed the buffer capacity. This allows an attacker to overflow the buffer by providing input that exceeds the expected maximum length.
Attack Vector
The attack vector is local, requiring the attacker to have access to a system where Easy MP3 Downloader 4.7.8.8 is installed. The exploitation process involves:
- Creating a text file containing approximately 6000 'A' characters (or any repeating character pattern)
- Launching the Easy MP3 Downloader application
- Copying the contents of the malicious file
- Pasting the oversized string into the Unlock Code input field
- The application crashes due to the buffer overflow
Additional technical details and a proof-of-concept can be found in the Exploit-DB #47319 entry.
Detection Methods for CVE-2019-25474
Indicators of Compromise
- Unexpected crashes of the Easy MP3 Downloader application during startup or license activation
- Presence of unusually large text files containing repetitive character patterns on the system
- Application crash dump files indicating memory access violations in the Easy MP3 Downloader process
Detection Strategies
- Monitor for Easy MP3 Downloader process crashes and generate alerts on repeated crash events
- Implement endpoint detection rules to identify clipboard operations involving excessively long strings being pasted into application dialogs
- Use application whitelisting to control which applications can run, reducing exposure to legacy vulnerable software
Monitoring Recommendations
- Configure crash monitoring tools to alert on Easy MP3 Downloader application failures
- Review system event logs for application error events related to Easy MP3 Downloader
- Deploy SentinelOne's behavioral AI to detect anomalous application terminations that may indicate exploitation attempts
How to Mitigate CVE-2019-25474
Immediate Actions Required
- Uninstall Easy MP3 Downloader 4.7.8.8 if it is not essential for business operations
- Restrict user access to systems where Easy MP3 Downloader is installed
- Consider replacing Easy MP3 Downloader with an actively maintained alternative that receives security updates
- Deploy endpoint protection solutions to monitor for exploitation attempts
Patch Information
No vendor patch is currently available for this vulnerability. The software appears to be legacy/abandoned, and users should consider migrating to alternative solutions. For additional advisory information, refer to the VulnCheck Advisory on Easy MP3 Downloader.
Workarounds
- Remove or disable Easy MP3 Downloader from all systems where it is not strictly required
- Implement application control policies to prevent unauthorized execution of Easy MP3 Downloader
- Use endpoint protection solutions like SentinelOne to monitor and protect against exploitation of this vulnerability
- Educate users about the risks of using outdated and unsupported software
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
