CVE-2026-55200 - Vulnerability Details

Related Threat Clusters

• Anonymous Researcher Publishes Zero-Day Exploits for Major Software Projects

  An anonymous researcher known as Bikini has released exploit code for over a dozen zero-day vulnerabilities affecting 15 popular open-source projects, including the Linux kernel and Libssh2. The exploits were disclosed…

  4 articles · Updated July 1, 2026
• Critical Vulnerabilities in libssh2 Enable Remote Code Execution and DoS Attacks

  Two critical vulnerabilities have been discovered in libssh2, a widely used SSH library, affecting versions up to 1.11.1. The first vulnerability, CVE-2026-55200, allows remote code execution through crafted SSH…

  19 articles · Updated June 22, 2026

Recent Intelligence Reports

• Exploitarium: Anonymous security researcher publishes two dozen zero-days — Heise.De · July 1, 2026
• Anonymous researcher dumps zero-day exploits for multiple software products — Scworld · June 30, 2026
• Critical libssh2 Vulnerability Allows Attackers to Execute Remote Code Via Malicious SSH packets — Cybersecuritynews · June 23, 2026
• Critical libssh2 Vulnerability Lets Remote Attackers Execute Code via Crafted SSH Packets — Gbhackers · June 23, 2026
• Massive security flaw discovered in popular SSH library libssh2 — Cybernews · June 22, 2026
• Security vulnerabilities endanger connections via libssh2 — Heise.De · June 21, 2026

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