CVE-2026-62798 Untrusted pointer dereference in Windows Win32K allows an authorized attacker to disclose information locally

Description

Untrusted pointer dereference in Windows Win32K allows an authorized attacker to disclose information locally.

Affected products and versions

Product	Affected versions	Fixed in
Windows 11 Version 23H2 10.0	10.0.22631.0 → < 10.0.22631.7517	10.0.22631.7517
Windows 11 Version 24H2 10.0	10.0.26100.0 → < 10.0.26100.9168	10.0.26100.9168
Windows 11 Version 25H2 10.0	10.0.26200.0 → < 10.0.26200.9168	10.0.26200.9168
Windows 11 version 26H1 10.0	10.0.28000.0 → < 10.0.28000.2704	10.0.28000.2704
Windows Server 2025 10.0	10.0.26100.0 → < 10.0.26100.33296	10.0.26100.33296
Windows Server 2025 (Server Core installation) 10.0	10.0.26100.0 → < 10.0.26100.33296	10.0.26100.33296

Other CVEs of Windows 11 Version 23H2

The 3424 CVEs of Windows 11 Version 23H2 →

CVE-2026-105016 Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network 9.8 Critical CVE-2026-108136 Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally 7.8 High CVE-2026-108135 Improper link resolution before file access ('link following') in Windows Backup Engine allows an authorized attacker to… 7.0 High CVE-2026-108129 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network 6.5 Medium