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Jun 30, 2026 · Information Security

CVE-2026-55200: In-Depth Analysis and PoC of libssh2 Pre-Authentication RCE

The article details CVE-2026-55200, a critical out-of-bounds write in libssh2 that enables unauthenticated remote code execution, explains the underlying flaw, shows a full PoC, outlines the extensive supply‑chain impact, and provides detection commands and mitigation steps.