CVE-2026-55199 - Vulnerability Details

Frequency

occurrences

First Seen

June 21, 2026

Last Seen

June 22, 2026

CVE-2026-55199 is a vulnerability tracked across 1 threat cluster and 2 intelligence report mentions on ThreatCluster. First observed June 21, 2026; most recent activity June 22, 2026.

Related Threat Clusters

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

Massive security flaw discovered in popular SSH library libssh2 — Cybernews · June 22, 2026
Security vulnerabilities endanger connections via libssh2 — Heise.De · June 21, 2026

Related Entities

DDoS Denial of Service CVE-2026-55200 CWE-287 - Improper Authentication Cwe-787 - Out-of-bounds Write T1021 - Remote Services Linux

CVE-2026-55199 - Vulnerability Details

Entity Not Found

Related Threat Clusters

Recent Intelligence Reports

Related Entities

CVSS v3.1 Breakdown