CVE-2026-42970

CVE-2026-42970

Use of uninitialized resource in Windows Push Notifications allows an authorized attacker to disclose information locally.

Vulnerability class: Information Disclosure

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

secure@microsoft.com

Frequently asked questions

What is CVE-2026-42970?: CVE-2026-42970 is a medium-severity vulnerability, classified under Information Disclosure. CVSS score: 5.5/10. Published 2026-06-09.
How severe is CVE-2026-42970?: Medium severity. CVSS v3 base score is 5.5 out of 10.