CISA Warns of Check Point 0-Day Vulnerability Exploited in Attacks

The Cybersecurity and Infrastructure Security Agency (CISA) has issued a warning regarding a critical Check Point security flaw, CVE-2026-123039, that is actively being exploited. The vulnerability allows a local user to gain root access on affected appliances, including Force Firewalls and Management and Log Servers. Check Point has released Jumbo Hotfix Accumulator updates to address the issue.