CVE-2026-65789

Published Aug 11, 2026

Last updated 3 days ago

CVSS high 8.1
Port (53)

Overview

Description
Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
Source
secure@microsoft.com
NVD status
Analyzed
Products
windows_10_1607, windows_10_1809, windows_server_2016, windows_server_2019, windows_server_2022, windows_server_2025

Risk scores

CVSS 3.1

Type
Secondary
Base score
8.1
Impact score
5.9
Exploitability score
2.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

secure@microsoft.com
CWE-416

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.