CVE-2026-25177
Active Directory Domain Services Elevation of Privilege Vulnerability
In short
Active Directory Domain Services allows authorized users to improperly use file and resource names to gain higher privileges on the network. This is dangerous because it lets someone who already has some access take over administrator-level control.
Technical detail
An authenticated attacker can exploit improper validation of resource names in Active Directory Domain Services to escalate privileges across the domain. The vulnerability requires prior network access and valid credentials, but allows elevation from standard user to administrative rights through crafted resource naming.
Summary generated and translated by AI from the official description.
Improper restriction of names for files and other resources in Active Directory Domain Services allows an authorized attacker to elevate privileges over a network.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Windows 10 Version 1607Microsoft · Windows 10 Version 1809Microsoft · Windows 10 Version 21H2Microsoft · Windows 10 Version 22H2Microsoft · Windows 11 version 22H3Microsoft · Windows 11 Version 23H2Microsoft · Windows 11 Version 24H2Microsoft · Windows 11 Version 25H2Microsoft · Windows 11 version 26H1Microsoft · Windows Server 2012Microsoft · Windows Server 2012 R2Microsoft · Windows Server 2012 R2 (Server Core installation)Microsoft · Windows Server 2012 (Server Core installation)Microsoft · Windows Server 2016Microsoft · Windows Server 2016 (Server Core installation)Microsoft · Windows Server 2019Microsoft · Windows Server 2019 (Server Core installation)Microsoft · Windows Server 2022Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft · Windows Server 2025Microsoft · Windows Server 2025 (Server Core installation)Want to know if your infrastructure is exposed to this?
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