Two Critical Vulnerabilities in libssh2 Enable Code Execution and DoS Attacks22. June 2026CybersecurityVulnerabilities CVE-2026-55200 (CVSS 9.2) and CVE-2026-55199 (CVSS 8.2) in libssh2 1.11.1 and older versions require immediate patches, but are not yet available in official releases. Share on: