Disclosure summary
Use after free in Windows Distributed File System (DFS) allows an authorized attacker to execute code over a network.
Source-reported weakness categories
CWE-416
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-78446
Open original source · Updated Oct 07, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| microsoft | windows_10_1607 | * {"versionEndExcluding":"10.0.14393.9512"} |
| microsoft | windows_10_1607 | * {"versionEndExcluding":"10.0.14393.9512"} |
| microsoft | windows_10_1809 | * {"versionEndExcluding":"10.0.17763.9245"} |
| microsoft | windows_10_1809 | * {"versionEndExcluding":"10.0.17763.9245"} |
| microsoft | windows_10_21h2 | * {"versionEndExcluding":"10.0.19044.7725"} |
| microsoft | windows_10_21h2 | * {"versionEndExcluding":"10.0.19044.7725"} |
| microsoft | windows_10_21h2 | * {"versionEndExcluding":"10.0.19044.7725"} |
| microsoft | windows_10_22h2 | * {"versionEndExcluding":"10.0.19045.7725"} |
| microsoft | windows_10_22h2 | * {"versionEndExcluding":"10.0.19045.7725"} |
| microsoft | windows_10_22h2 | * {"versionEndExcluding":"10.0.19045.7725"} |
| microsoft | windows_11_23h2 | * {"versionEndExcluding":"10.0.22631.7582"} |
| microsoft | windows_11_23h2 | * {"versionEndExcluding":"10.0.22631.7582"} |
| microsoft | windows_11_24h2 | * {"versionEndExcluding":"10.0.26100.9445"} |
| microsoft | windows_11_24h2 | * {"versionEndExcluding":"10.0.26100.9445"} |
| microsoft | windows_11_25h2 | * {"versionEndExcluding":"10.0.26200.9445"} |
| microsoft | windows_11_25h2 | * {"versionEndExcluding":"10.0.26200.9445"} |
| microsoft | windows_11_26h1 | * {"versionEndExcluding":"10.0.28000.2954"} |
| microsoft | windows_11_26h1 | * {"versionEndExcluding":"10.0.28000.2954"} |
| microsoft | windows_server_2012 | - |
| microsoft | windows_server_2012 | r2 |
| microsoft | windows_server_2016 | * {"versionEndExcluding":"10.0.14393.9512"} |
| microsoft | windows_server_2019 | * {"versionEndExcluding":"10.0.17763.9245"} |
| microsoft | windows_server_2022 | * {"versionEndExcluding":"10.0.20348.5622"} |
| microsoft | windows_server_2025 | * {"versionEndExcluding":"10.0.26100.33438"} |
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Patch, Vendor Advisory
PUBLISHED 2026-09-08T14:20:42-04:00
MODIFIED 2026-10-07T12:18:55-04:00
INGESTED 2026-10-10T20:25:12-04:00