CVE-2026-69858 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Microsoft	Windows Server 2022 Windows Server 2025 Windows Server 2025 (server Core Installation)

No data.

No data.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69858

History

Wed, 09 Sep 2026 19:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 09 Sep 2026 16:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Microsoft windows Server 2025 (server Core Installation)
Vendors & Products		Microsoft windows Server 2025 (server Core Installation)

Tue, 08 Sep 2026 17:30:00 +0000

Type	Values Removed	Values Added
Description		Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
Title		Windows DNS Server Remote Code Execution Vulnerability
First Time appeared		Microsoft Microsoft windows Server 2022 Microsoft windows Server 2025
Weaknesses		CWE-416
CPEs		cpe:2.3:o:microsoft:windows_server_2022:::::::: cpe:2.3:o:microsoft:windows_server_2025::::::::
Vendors & Products		Microsoft Microsoft windows Server 2022 Microsoft windows Server 2025
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69858
Metrics		cvssV3_1 `{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-09-08T17:16:49.500Z

Updated: 2026-09-10T23:09:25.063Z

Reserved: 2026-08-03T22:51:46.191Z

Link: CVE-2026-69858

Vulnrichment

Updated: 2026-09-09T18:19:30.513Z

NVD

Status : Awaiting Analysis

Published: 2026-09-08T18:19:57.143

Modified: 2026-09-10T04:18:15.430

Link: CVE-2026-69858

Redhat

No data.

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