The U.S. Cybersecurity and Infrastructure Security Agency (CISA) hasaddeda recently patched critical security flaw in Zyxel gear to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. Tracked asCVE-2023-28771(CVSS score: 9.8), the issue relates to acommand injection flawimpacting different firewall models that could enable an unauthenticated attacker