Cybersecurity Daily: News & Threats · 18 May 2026 · 5 min

Active Exploits, 25M Breach & Silent Azure Patch | Today's Threats

Three critical exploits are being weaponized right now — NGINX, Exchange, and openDCIM — while a 25-million-record U.S. data breach and a silent Microsoft Azure patch round out today's most urgent cybersecurity stories. If you manage infrastructure or handle risk, this briefing covers everything that moved in the last 24 hours.

Cybersecurity Daily: News & Threats
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Active Exploits, 25M Breach & Silent Azure Patch | Today's Threats

Audio is available on Spreaker — see link below.

What's covered

NGINX 18-Year-Old Flaw Exploited

A vulnerability introduced into NGINX's codebase in two thousand and eight is being actively weaponized in the wild right now. That's the clearest signal from the past twenty-four hours: the threat isn't always new code.

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Microsoft Exchange Zero-Day Active

The second critical exploit active in the wild right now is CVE-2026-42897, a Microsoft Exchange zero-day. Unauthenticated remote code execution via a crafted email on on-premises Exchange servers.

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OpenDCIM Chain and AI-Assisted Attacks

The openDCIM story deserves its own attention. Three vulnerabilities, each rated nine point three, chained together for full remote code execution.

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Conduent Breach 25 Million Americans

On the breach side, the Conduent data breach is the largest confirmed U.S. breach in recent history. Twenty-five million Americans affected across two states: fifteen million Texans and ten million Oregonians.

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Iran Ransomware Targets Critical Infrastructure

Iran-aligned threat actors are increasingly using ransomware not for financial return but as a coercive instrument against critical infrastructure. Water systems, energy facilities, manufacturing.

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Microsoft Silent Azure Patch

One final item that carries broader implications. A researcher identified a privilege escalation flaw in Azure Backup for AKS.

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