TTPwire Vol. 1 · MITRE ATT&CK·Tagged

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CIS Advisories

A Vulnerability in OpenSSH Could Allow for Authentication Bypass

2026-04-28 · Read original ↗

ATT&CK techniques detected

1 predictions
T1078.001Default Accounts
57%
“’ s policy for remediation scope and prioritization. * apply the principle of least privilege to all systems and services. run all software as a non - privileged user ( one without administrative privileges ) to diminish the effects of a successful attack. ( m1026 : privileged ac…”

Summary

A vulnerability has been discovered in OpenSSH which could allow for authentication bypass. OpenSSH (Open Secdure Shell) is an open-source suite of secure networking utilities based on the SSH protocol. It provides encrypted communication sessions over unsecured networks in a client-server architecture, primarily used for remote login and secure file transfers. Successful exploitation of the vulnerability could provide an attacker with root access to all the servers an organization has, if the vulnerable protocol runs on them.