CVE-2026-49807 in Windows
Summary
by MITRE • 07/14/2026
Exposure of sensitive information to an unauthorized actor in Windows DirectX allows an unauthorized attacker to disclose information locally.
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Analysis
by VulDB Data Team • 07/14/2026
This vulnerability represents a critical information disclosure flaw within the Windows DirectX framework that enables local attackers to access sensitive system data without proper authorization. The issue stems from inadequate access controls and privilege management within the DirectX component architecture, which governs multimedia operations and graphics processing on Windows systems. When exploited, this weakness allows adversaries with local user privileges to extract confidential information that should remain restricted to authorized processes and system components.
The technical nature of this vulnerability aligns with CWE-200, which specifically addresses the exposure of sensitive information to unauthorized actors. In DirectX implementations, this typically occurs through improper handling of memory segments, registry entries, or system resources that contain confidential data structures used for graphics rendering, audio processing, or hardware abstraction layers. Attackers can leverage this weakness to access system configuration details, driver information, or other privileged data that should not be accessible to standard user accounts.
The operational impact extends beyond simple information disclosure, as the compromised data could potentially reveal system architecture details, security configurations, or sensitive process information that aids in subsequent attack phases. This vulnerability particularly affects enterprise environments where DirectX is extensively used for multimedia applications, gaming platforms, and professional software solutions. The local nature of the exploit means that attackers do not require network connectivity or remote access capabilities, making it especially dangerous in environments where user accounts have elevated privileges.
From an adversarial perspective, this weakness maps to ATT&CK technique T1082, which involves discovering system information through local reconnaissance activities. Attackers can use the disclosed information to identify system vulnerabilities, map network topology, or plan more sophisticated attacks targeting other system components. The vulnerability also intersects with T1566, representing a potential entry point for lateral movement after initial compromise, as attackers might combine this information disclosure with other techniques to escalate privileges or access additional resources.
Mitigation strategies should focus on implementing proper access controls and privilege separation within the DirectX subsystem. System administrators should ensure that all DirectX components are kept current with security patches from Microsoft, particularly addressing the specific vulnerability in question. Additional protective measures include implementing least privilege principles for user accounts, monitoring access patterns to DirectX-related resources, and conducting regular security assessments of multimedia applications that utilize DirectX APIs. Organizations should also consider network segmentation and application whitelisting policies to limit potential exploitation vectors while maintaining operational functionality.
The broader implications of this vulnerability highlight the importance of comprehensive security testing for system components that handle privileged operations. Regular security audits of graphics and multimedia frameworks are essential, as these components often contain complex code structures that may harbor hidden vulnerabilities. Security teams should also implement monitoring solutions capable of detecting anomalous access patterns to DirectX-related system resources, providing early warning capabilities for potential exploitation attempts.