Executive brief
A security vulnerability exists in Windows Media, the component responsible for playing and managing multimedia files on Windows operating systems. An attacker who already has basic access to a computer could exploit this flaw to view sensitive information they are not authorized to see. This could lead to the exposure of private data, though it requires the attacker to have local access to the machine rather than attacking it over the internet.
Technical details
An information disclosure vulnerability (CWE-200) exists in Windows Media across multiple versions of Windows and Windows Server. The vulnerability allows an attacker with local access and low privileges (PR:L) to disclose sensitive information to an unauthorized actor. The attack vector is local (AV:L), meaning the attacker must have the ability to execute code on the target system. The impact is limited to confidentiality (C:H) with no impact on system integrity or availability. Microsoft has released security updates to address this issue across affected versions including Windows 10, Windows 11, and Windows Server 2012 R2.
Affected products
- Microsoft Windows 10 1607, 1809, 21H2, 22H2
- Microsoft Windows 11 24H2, 25H2, 26H1
- Microsoft Windows Server 2012 R2 All versions
Timeline
- 2026-07-14: advisory: Initial publication by Microsoft and NVD
- 2026-07-14: patched: Security updates released by Microsoft