CVE-2026-61920
Windows DNS Server Remote Code Execution Vulnerability
CVSS Score
6.6
EPSS Score
0.0%
EPSS Percentile
0th
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an authorized attacker to execute code over a network.
| Vendor | microsoft |
| Product | windows server 2012 r2 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Aug 11, 2026 |
| Last Updated | Sep 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Windows Server 2012 R2
6.3.9600.0 < 6.3.9600.23338
Microsoft / Windows Server 2012 R2 (Server Core installation)
6.3.9600.0 < 6.3.9600.23338
Microsoft / Windows Server 2016
10.0.14393.0 < 10.0.14393.9418
Microsoft / Windows Server 2016 (Server Core installation)
10.0.14393.0 < 10.0.14393.9418
Microsoft / Windows Server 2019
10.0.17763.0 < 10.0.17763.9121
Microsoft / Windows Server 2019 (Server Core installation)
10.0.17763.0 < 10.0.17763.9121
Microsoft / Windows Server 2022
10.0.20348.0 < 10.0.20348.5499
Microsoft / Windows Server 2025
10.0.26100.0 < 10.0.26100.33296
Microsoft / Windows Server 2025 (Server Core installation)
10.0.26100.0 < 10.0.26100.33296