Executive brief
A security vulnerability in the Windows Notification system could allow an authorized user to access sensitive information they are not supposed to see. This component is responsible for displaying system and application alerts to users. An attacker who already has basic access to a computer could exploit this to gain unauthorized insights into system data or other users' activities.
Technical details
This vulnerability is classified as an Information Exposure (CWE-200) within the Windows Notification component. An attacker with local access and low-level privileges (PR:L) can exploit this flaw to disclose sensitive information without requiring any user interaction. The attack vector is local (AV:L), meaning the attacker must already have a foothold on the target system. Microsoft has released security updates for various versions of Windows 10, Windows 11, and Windows Server 2012 to address this issue.
Affected products
- Microsoft Windows 10 Version 1607 10.0.14393.0 to 10.0.14393.9339
- Microsoft Windows 10 Version 1809 10.0.17763.0 to 10.0.17763.9020
- Microsoft Windows 10 Version 21H2 10.0.19044.0 to 10.0.19044.7548
- Microsoft Windows 10 Version 22H2 10.0.19045.0 to 10.0.19045.7548
- Microsoft Windows 11 Version 24H2 10.0.26100.0 to 10.0.26100.8875
- Microsoft Windows 11 Version 25H2 10.0.26200.0 to 10.0.26200.8875
- Microsoft Windows 11 version 26H1 10.0.28000.0 to 10.0.28000.2269
- Microsoft Windows Server 2012 6.2.9200.0 to 6.2.9200.26226
Timeline
- 2026-07-14: advisory: Initial publication by Microsoft and NVD