Information Disclosure Vulnerability in Windows Push Notifications by Microsoft
CVE-2026-42970

5.5MEDIUM

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21h2
Windows 10 Version 22h2
Vendor
CVE Published:
9 June 2026

What is CVE-2026-42970?

A vulnerability exists in Windows Push Notifications due to the use of uninitialized resources, enabling an authorized attacker to potentially disclose sensitive information locally. This situation presents a risk as it could allow attackers to exploit the affected areas and gain unauthorized access to sensitive data on the system. Users are urged to implement the latest updates provided by Microsoft to mitigate this risk.

Affected Version(s)

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.9234

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.8880

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7417

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.