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“Good enough” emulation: Fuzzing a single thread to uncover vulnerabilities

📅 February 19, 2026 📰 blog.talosintelligence.com 🔍 4 CVE(s) referenced

By strategically emulating just the Modbus protocol thread instead of the full device, a researcher bypassed hardware protections to uncover and help patch six critical denial-of-service vulnerabilities in a widely used industrial IoT gateway.

vendor
CVE-2025-54851, CVE-2025-55221, CVE-2025-55222, CVE-2025-54848

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