Microsoft’s August 2026 Patch Tuesday fixed hundreds of CVEs including CVE-2026-68820, an actively exploited privilege-escalation zero-day in the Windows WinSock driver. It’s the kind of bug attackers use to turn a single foothold into full control.
Our analysis
Privilege-escalation zero-days are the quiet workhorses of real intrusions. For Cyprus organisations, the important question isn’t just “did we patch?” but “how far could an attacker get once inside?” A flat network turns one phished laptop into a domain-wide problem — and since this was exploited before a fix existed, treat it as an incident-response prompt, not routine maintenance.
What you should do
- Deploy the August updates now, prioritising workstations.
- Hunt for signs of post-exploitation on hosts that were unpatched.
- Enforce least privilege and tiered admin so one escalation can’t reach domain admin.
- Confirm endpoint detection is live on every device.
How CyprusPentest helps: our internal network penetration testing and Active Directory penetration testing measure your real blast radius from an assumed-breach position.
Source: Tenable.