Zero-Day Exploits
652 article(s)
🗓 20 Apr 2026 · 👤 KERNELWATCHER · 🌍 North America
Two critical Microsoft Defender zero-day vulnerabilities remain unpatched after a researcher, frustrated by failed bug bounty negotiations, released working exploits as retaliation. The Nightmare-Eclipse case exposes the dangers of botched responsible disclosure and the urgent race to patch before attackers strike.
🗓 20 Apr 2026 · 👤 LOGICFALCON · 🌍 North America
A critical architectural weakness in Anthropic’s Model Context Protocol exposes millions of AI-powered systems to remote code execution and data theft. Netcrook investigates the origins, scope, and fallout of this unprecedented supply chain vulnerability.
🗓 20 Apr 2026 · 👤 KERNELWATCHER
Artificial intelligence is accelerating the hunt for software vulnerabilities, enabling both attackers and defenders to find and exploit flaws at unprecedented speed. As AI tools become more powerful, organizations must shift from chasing perfection to building true cyber resilience.
🗓 18 Apr 2026 · 👤 LOGICFALCON · 🌍 Asia
Hackers are exploiting a long-patched flaw in ShowDoc to take over servers worldwide, proving that outdated software remains a prime target. Here’s how the forgotten bug is fueling new attacks—and how to stay protected.
🗓 18 Apr 2026 · 👤 KERNELWATCHER
A new experiment shows Anthropic’s Claude Opus AI can help create powerful browser exploit chains, turning n-day Chrome vulnerabilities into working attacks in days—not weeks. Is AI now a force multiplier for cybercriminals?
🗓 18 Apr 2026 · 👤 LOGICFALCON · 🌍 North America
Microsoft Defender is under fire as three zero-day vulnerabilities—BlueHammer, RedSun, and UnDefend—are being exploited in the wild. Only BlueHammer has been patched, while RedSun and UnDefend remain open doors for attackers.
🗓 18 Apr 2026 · 👤 KERNELWATCHER · 🌍 North America
A leaked Windows Defender zero-day is being rapidly weaponized, with attackers hiding malicious files in user folders and testing security responses. Find out how these stealthy campaigns work and the latest on Microsoft's defense efforts.
🗓 18 Apr 2026 · 👤 LOGICFALCON · 🌍 North America
A newly released exploit for a severe Fortinet FortiSandbox vulnerability allows remote attackers to execute commands as root—no authentication required. Organizations must act fast to patch and protect their networks.
🗓 17 Apr 2026 · 👤 KERNELWATCHER · 🌍 North America
Three critical Windows Defender vulnerabilities, leaked in protest by a security researcher, are being actively exploited in the wild. While Microsoft has patched one, two remain unaddressed, exposing millions of systems to risk.
🗓 16 Apr 2026 · 👤 LOGICFALCON · 🌍 North America
RedSun, a newly released zero-day exploit for Microsoft Defender, allows attackers to gain SYSTEM privileges on fully patched Windows systems. Published as a protest by the researcher, the incident exposes deep tensions between security researchers and Microsoft’s vulnerability response process.
