CVE-2006-6025 in Eudora WorldMail
Summary
by MITRE
QUALCOMM Eudora WorldMail 4.0 allows remote attackers to cause a denial of service, as demonstrated by a certain module in VulnDisco Pack. NOTE: The provenance of this information is unknown; the details are obtained solely from third party information. As of 20061118, this disclosure has no actionable information. However, because the VulnDisco Pack author is a reliable researcher, the issue is being assigned a CVE identifier for tracking purposes.
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Analysis
by VulDB Data Team • 04/28/2026
The vulnerability identified as CVE-2006-6025 affects QUALCOMM Eudora WorldMail version 4.0, a email client software that was widely used during the mid-2000s period. This particular vulnerability represents a denial of service condition that can be exploited remotely by attackers, potentially disrupting normal email communication services for affected users. The vulnerability was initially disclosed through the VulnDisco Pack, which was a collection of security tools and exploits developed by security researchers for testing purposes. The disclosure came from a third-party source, indicating that the vulnerability had been discovered and documented by security researchers outside of QUALCOMM's own security team. The vulnerability was classified as a remote denial of service issue, meaning that attackers could potentially exploit this weakness without requiring physical access to the target system or user interaction beyond receiving an email.
The technical nature of this vulnerability appears to be related to a specific module within the VulnDisco Pack that was designed to demonstrate the exploit potential against Eudora WorldMail 4.0. While the exact technical implementation details remain unclear due to the limited information available, such denial of service vulnerabilities typically involve malformed input processing or buffer overflow conditions that cause the application to crash or become unresponsive. The vulnerability could potentially be triggered through specially crafted email messages or network packets that exploit memory management flaws in the email client's processing routines. According to the CVE description, this issue was classified as having no actionable information as of November 18, 2006, suggesting that the exploit details were either not fully understood or that the vulnerability was considered too obscure to warrant immediate remediation efforts.
The operational impact of CVE-2006-6025 would have been significant for organizations and individuals using Eudora WorldMail 4.0, as denial of service attacks can completely disrupt email communication services and potentially impact productivity. The vulnerability could have been exploited by malicious actors to temporarily disable email services for targeted users or organizations, effectively creating a communication blackout that would prevent users from sending or receiving emails. The fact that this vulnerability was discovered through a third-party researcher's tools indicates that it was likely a sophisticated exploit that required specific technical knowledge to develop and deploy. Organizations relying on this email client would have been vulnerable to such attacks without proper mitigation measures in place, potentially affecting business continuity and user productivity.
The assignment of a CVE identifier for this vulnerability demonstrates the importance of tracking and documenting security issues even when they lack immediate actionable information. This practice aligns with the Common Weakness Enumeration (CWE) framework, which catalogs various software weaknesses that can lead to security vulnerabilities, including those that may manifest as denial of service conditions. While the vulnerability may not have had immediate remediation requirements at the time of disclosure, its tracking through CVE ensures that security researchers and vendors can monitor and address such issues as they develop. The vulnerability also relates to the ATT&CK framework's denial of service tactics, which categorize various methods of disrupting system availability through exploitation of software weaknesses. The lack of actionable information at the time of disclosure does not diminish the importance of vulnerability tracking, as it allows security professionals to develop awareness and prepare for potential exploitation scenarios in the future. Organizations should have implemented monitoring and mitigation strategies to address such vulnerabilities even when they were not immediately exploitable, particularly given the reliability of the researcher who originally discovered the issue through the VulnDisco Pack.