PT-2026-58346 · Microsoft · Windows Push Notifications Apps

Published 2026-07-14 · Updated 2026-07-15 · CVE-2026-50363

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows Push Notifications (affected versions not specified)

Description A heap-based buffer overflow exists in Windows Push Notifications. This flaw allows an authorized attacker to elevate privileges locally. A heap-based buffer overflow occurs when a program writes more data to a heap memory buffer than it can hold, potentially leading to memory corruption.

Recommendations Apply the July updates to resolve this issue.

Fix

LPE

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-50363

Affected Products

Windows Push Notifications Apps

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-50363 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50363 · Vendor Advisory
• https://twitter.com/windowsforum/status/2077257653403713663 · Twitter Post