CVE-2026-69730

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

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - secure@microsoft.com

Published

2026-09-08

Last modified

2026-10-14

Weaknesses

CWE-416

Affected products

• Windows 10 1607 (Microsoft)
• Windows 10 1809 (Microsoft)
• Windows Server 2012 (Microsoft)
• Windows Server 2012 R2 (Microsoft)
• Windows Server 2016 (Microsoft)
• Windows Server 2019 (Microsoft)
• Windows Server 2022 (Microsoft)
• Windows Server 2025 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69730