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CVE-2026-69730

CriticalCVSS 9.8/10Last modified Sep 24, 2026

Description

Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Windows 10 Version 1607	>= 10.0.14393.0, < 10.0.14393.9512
Microsoft	Windows 10 Version 1809	>= 10.0.17763.0, < 10.0.17763.9245
Microsoft	Windows Server 2012	>= 6.2.9200.0, < 6.2.9200.26349
Microsoft	Windows Server 2012 (Server Core installation)	>= 6.2.9200.0, < 6.2.9200.26349
Microsoft	Windows Server 2012 R2	>= 6.3.9600.0, < 6.3.9600.23398
Microsoft	Windows Server 2012 R2 (Server Core installation)	>= 6.3.9600.0, < 6.3.9600.23398
Microsoft	Windows Server 2016	>= 10.0.14393.0, < 10.0.14393.9512
Microsoft	Windows Server 2016 (Server Core installation)	>= 10.0.14393.0, < 10.0.14393.9512
Microsoft	Windows Server 2019	>= 10.0.17763.0, < 10.0.17763.9245
Microsoft	Windows Server 2019 (Server Core installation)	>= 10.0.17763.0, < 10.0.17763.9245
Microsoft	Windows Server 2022	>= 10.0.20348.0, < 10.0.20348.5622
Microsoft	Windows Server 2025	>= 10.0.26100.0, < 10.0.26100.33438
Microsoft	Windows Server 2025 (Server Core installation)	>= 10.0.26100.0, < 10.0.26100.33438

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69730Patch, Vendor Advisory

Timeline

Published: Sep 8, 2026
Last modified: Sep 24, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-697317.8Heap-based buffer overflow in HID class driver allows an authorized attacker to elevate privileges locally.CVE-2026-697328.1Heap-based buffer overflow in Windows Link Layer Topology Discovery Protocol allows an unauthorized attacker to execute code over a network.CVE-2026-697337.8Untrusted search path in Windows Update allows an authorized attacker to elevate privileges locally.CVE-2026-697346.5Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.CVE-2026-697357.0Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.CVE-2026-697367.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Credential Manager allows an authoriz CVE-2026-697387.8Integer overflow or wraparound in Windows Biometric Service allows an authorized attacker to elevate privileges locally.CVE-2026-697397.5Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information over a network.CVE-2026-697408.8Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.CVE-2026-697415.5Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information locally.CVE-2026-697428.8Integer overflow or wraparound in Microsoft Office Publisher allows an unauthorized attacker to execute code over a network.CVE-2026-697437.0Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

CVE-2026-69730: Critical severity, CVSS 9.8 | Vulnix