CVE-2026-88129

Published: Oct 13, 2026Modified: Oct 16, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 2.8 / Impact: 3.6

Source: secure@microsoft.com (Secondary)

Description

Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.

Affected (6)

Products: Microsoft: Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows Server 2022, Windows Server 2025

5 products

Windows Server 2012

Windows Server 2016

Windows Server 2019

Windows Server 2022

Windows Server 2025

Configuration A

6 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows Server 2012	All versions
Microsoft Windows Server 2012	Version r2
Microsoft Windows Server 2016	version < 10.0.14393.9612
Microsoft Windows Server 2019	version < 10.0.17763.9376
Microsoft Windows Server 2022	version < 10.0.20348.5761
Microsoft Windows Server 2025	version < 10.0.26100.33650

Related CWEs

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88129

Source: secure@microsoft.com

Vendor Advisory

Timeline

No history available yet.