High 8.8
CVE-2026-54121
Detecting CVE-2026-54121 (Certighost) with Microsoft Defender
Vendor / product: Microsoft Active Directory Certificate Services
Event date: 2026-07-24
Victim organization: Organizations
Public PoC: Yes
First tracked by RiskWire: 2026-07-28
Sources & citations (3)
- Detecting CVE-2026-54121 (Certighost) with Microsoft Defender techcommunity.microsoft.com · 2026-07-31
- 'Certighost' Flaw Haunts Microsoft Active Directory Certificates darkreading.com · 2026-07-28
- Proof-of-concept exploit released for Certighost Windows AD CS vulnerability scworld.com · 2026-07-28
References
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