Out-of-bounds read in Windows Server - CVE-2026-70119
Published: October 14, 2026
Vulnerability identifier: #VU154573
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-70119
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to an out-of-bounds read in Windows DNS when handling network input. A remote user can exploit the out-of-bounds read over a network to cause a denial of service.
Affected software
Windows Server
How to mitigate CVE-2026-70119
Install security update from vendor's website.
Windows Server - addressed in versions 2022 10.0.20348.5761, 2025 10.0.26100.33650