Cisco has confirmed a critical vulnerability (CVE-2024-6387) in multiple products related to OpenSSH, known as the regreSSHion flaw. This vulnerability has been added to the Known Exploited Vulnerabilities catalog by the Cybersecurity and Infrastructure Security Agency (CISA). Additionally, a command injection bug in Cisco NX-OS has also been listed in the catalog. Cisco has warned that dozens of its networking and communications devices are likely vulnerable to these flaws. Security Affairs advises users to patch it now.