CVE-2026-49169 Use after free in DNS Server allows an authorized attacker to execute code over a network

Description

Use after free in DNS Server allows an authorized attacker to execute code over a network.

Affected products and versions

Product	Affected versions	Fixed in
Windows Server 2025 10.0	10.0.26100.0 → < 10.0.26100.33158	10.0.26100.33158
Windows Server 2025 (Server Core installation) 10.0	10.0.26100.0 → < 10.0.26100.33158	10.0.26100.33158

Other CVEs of Windows Server 2025

The 3647 CVEs of Windows Server 2025 →

CVE-2026-108136 Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally 7.8 High CVE-2026-105016 Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network 9.8 Critical CVE-2026-108130 Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to… 7.8 High CVE-2026-108132 Double free in Windows Kerberos allows an authorized attacker to elevate privileges locally 7.0 High