AI Summary

A critical vulnerability in the libssh2 library has been made public, allowing for potential code execution on affected systems. The flaw, identified as CVE-2026-55200, enables a malicious or compromised SSH server to trigger memory corruption on a connecting client without requiring any credentials or user interaction. This vulnerability affects all releases of libssh2 up to and including version 1.11.1. The severity of this issue is underscored by its CVSS 4.0 score of 9.2, indicating a high level of risk. The release of a public proof-of-concept for this vulnerability is likely to prompt users to take immediate action to mitigate the risk of exploitation.

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