Interlock Ransomware Exploits Undisclosed Cisco Firewall Vulnerability in Zero-Day Attack

The Interlock ransomware group, known for conducting double-extortion attacks, exploited a critical vulnerability in Cisco enterprise firewalls prior to its public disclosure. The threat actors gained access to the flaw weeks before it was officially reported, though no specific CVE ID, dates, or technical details of the vulnerability were provided. The attack vector targeted Cisco's enterprise firewall products, but the exact scope of affected systems or organizations remains undisclosed. No additional impacts, such as data exfiltration or operational disruptions, were explicitly detailed in the report.