CVE-2000-0228 in Windows Media Rights Manager
Summary
by MITRE
Microsoft Windows Media License Manager allows remote attackers to cause a denial of service by sending a malformed request that causes the manager to halt, aka the "Malformed Media License Request" Vulnerability.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 04/21/2026
The CVE-2000-0228 vulnerability represents a critical denial of service flaw within Microsoft Windows Media License Manager component that operates as part of the broader Windows Media ecosystem. This vulnerability specifically targets the license management functionality that governs playback permissions for digital media content, making it a significant concern for systems that rely on Windows Media technologies for content distribution and playback. The flaw exists in the processing logic of the Windows Media License Manager which fails to properly validate incoming license requests, creating an exploitable condition that can be leveraged by remote attackers to disrupt normal service operations.
The technical nature of this vulnerability stems from inadequate input validation within the Windows Media License Manager's request processing pipeline. When a malformed license request is received, the system's parsing mechanism encounters unexpected data structures that cause the manager component to crash or become unresponsive. This occurs because the software lacks proper error handling and boundary checking mechanisms that would normally prevent malformed data from corrupting the application's execution flow. The vulnerability is classified as a buffer over-read or invalid memory access condition that leads to process termination, effectively rendering the Windows Media License Manager unavailable for legitimate license requests. According to CWE standards, this vulnerability maps to CWE-125, representing an out-of-bounds read condition, and CWE-20, indicating improper input validation.
The operational impact of this vulnerability extends beyond simple service disruption, as it can affect entire media streaming services and playback capabilities across affected systems. Organizations relying on Windows Media technologies for content delivery, corporate training materials, or digital entertainment services would experience significant operational downtime when this vulnerability is exploited. The remote nature of the attack means that adversaries can exploit this flaw from anywhere on the network without requiring local system access or authentication credentials, making it particularly dangerous for publicly accessible media servers and content distribution platforms. Attackers can leverage this vulnerability to repeatedly cause service interruptions, potentially leading to business disruption, loss of productivity, and degradation of user experience for legitimate media consumers.
Mitigation strategies for CVE-2000-0228 should focus on immediate patch deployment and network-level protections. Microsoft released security updates that addressed the input validation flaws in the Windows Media License Manager, and system administrators should prioritize applying these patches across all affected systems. Network segmentation and firewall rules can help limit exposure by restricting access to Windows Media services to trusted networks only. Additionally, implementing intrusion detection systems that monitor for malformed license requests can provide early warning of exploitation attempts. From an ATT&CK framework perspective, this vulnerability aligns with techniques involving denial of service and service disruption, specifically mapping to T1499.004 for network denial of service and T1566 for phishing with social engineering. Organizations should also consider implementing application whitelisting policies that restrict execution of unauthorized media components and maintain regular vulnerability assessments to identify similar input validation weaknesses in other software components.