CVE-2026-62818 PUBLISHED

Windows Active Directory Certificate Services (AD CS) Remote Code Execution Vulnerability

Assigner: microsoft
Reserved: 14.07.2026 Published: 11.08.2026 Updated: 12.08.2026

Use after free in Active Directory Certificate Services (AD CS) allows an authorized attacker to execute code over a network.

CVSS Vector: 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
CVSS Score: 8.8

CVSS 3.1

Vendor	Microsoft
Product	Windows Server 2012 (Server Core installation)
Versions	affected from 6.2.9200.0 to 6.2.9200.26280 (excl.)

Vendor	Microsoft
Product	Windows Server 2012 R2 (Server Core installation)
Versions	affected from 6.3.9600.0 to 6.3.9600.23338 (excl.)

Vendor	Microsoft
Product	Windows Server 2016 (Server Core installation)
Versions	affected from 10.0.14393.0 to 10.0.14393.9418 (excl.)

Vendor	Microsoft
Product	Windows Server 2019 (Server Core installation)
Versions	affected from 10.0.17763.0 to 10.0.17763.9115 (excl.)

Vendor	Microsoft
Product	Windows Server 2025 (Server Core installation)
Versions	affected from 10.0.26100.0 to 10.0.26100.33296 (excl.)