Active-Directory
Microsoft Patches Four CVSS 9.9 Flaws Spanning Azure Service Bus, Azure SRE Agent, Entra Provisioning, and Active Directory
Microsoft quietly shipped fixes for four unrelated CVSS 9.9 flaws — an unauthenticated-adjacent RCE in Azure Service Bus and privilege-escalation bugs in Azure SRE Agent, Entra Provisioning Service, and on-prem Active Directory — all remotely exploitable and disclosed August 6.
Certighost (CVE-2026-54121): A Low-Privileged AD User Can Impersonate Your Domain Controller
A working exploit for CVE-2026-54121 lets any domain user request a certificate for a Domain Controller through an AD CS enrollment fallback, then use it to DCSync the krbtgt hash. No admin rights, no user interaction.
Your Backup Server Is a Domain-Admin Factory: The Kill Chain Ransomware Operators Have Automated
The backup server is the highest-privilege machine in most environments and the least-hardened. Ransomware operators have known this for years and built repeatable kill chains around it. This is how they work and what it takes to stop them.
Veeam VBR CVE-2026-44963: Any Domain User Can Own Your Backup Server
A critical CVSS 9.4 RCE lets any authenticated domain user run code on domain-joined Veeam Backup & Replication servers. Patch to 12.3.2.4854 now.
Microsoft's June Patch Tuesday Is Its Biggest Ever: 200 Flaws, 33 Critical, Three Public Zero-Days
Microsoft's largest Patch Tuesday on record fixes 200 vulnerabilities including HTTP.sys and Kerberos KDC RCEs, three Hyper-V escapes, and the HTTP/2 Bomb and YellowKey BitLocker zero-days.
NTLM Coercion's Quiet Resurgence: Why 2026's Zero-Click Attacks Look Like 2021
Two unrelated bugs in the last month — an incomplete APT28 patch and an unpatched RPC defect — both hand attackers a 1990s-era credential primitive. The fact that NTLM coercion still works in 2026 is not a series of accidents. It is the model.
Windows Netlogon CVE-2026-41089: Unauthenticated RCE on Every Domain Controller
May Patch Tuesday's marquee bug is a stack-based buffer overflow in MS-NRPC that hands SYSTEM on any domain controller reachable over the network. Patch DCs first, before anything else.