CVE-2026-69372: Windows Network File System Denial of Service Vulnerability
Out-of-bounds read in Windows Network File System allows an authorized attacker to deny service over a network.
Other sources
Windows Network File System Denial of Service Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9245Patch KB5122876 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9512Patch KB5123099 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.26349Patch KB5123065 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.23397Patch KB5123066 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5622Patch KB5122882
Event History
Frequently Asked Questions
Which systems are listed as affected?
The affected software list includes Microsoft Windows 10; Windows Server 2012 and 2012 R2; Windows Server 2016, 2019, 2022, and 2025.
What level of access does an attacker need?
An attacker needs low-level privileges and network access, and exploitation requires user interaction. The attack complexity is rated low.
What is the expected security impact?
The stated impact is denial of service, with availability affected and no listed confidentiality or integrity impact.