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Tag: Interlock

Ransomware group exploited Cisco firewall vulnerability as a zero day, weeks before a patch appeared

One of the world’s most active ransomware groups, Interlock, started exploiting a critical-rated Cisco firewall vulnerability as a zero day weeks before it was patched in early March, Amazon has revealed. The vulnerability in question is CVE-2026-20131, a remotely exploitable deserialization flaw in Cisco Secure Firewall Management Center (FMC) Software which was given a maximum…

Interlock group exploiting the CISCO FMC flaw CVE-2026-20131 36 days before disclosure

The Interlock ransomware group has exploited a Cisco FMC zero-day RCE vulnerability in attacks since late January. The Interlock ransomware group has been exploiting a critical zero-day RCE vulnerability, tracked as CVE-2026-20131 (CVSS score of 10.0), in Cisco Secure Firewall Management Center (FMC) since late January. The vulnerability is a remote code execution flaw that…

Interlock Ransomware Exploits Cisco FMC Zero-Day CVE-2026-20131 for Root Access

Amazon Threat Intelligence is warning of an active Interlock ransomware campaign that’s exploiting a recently disclosed critical security flaw in Cisco Secure Firewall Management Center (FMC) Software. The vulnerability in question is CVE-2026-20131 (CVSS score: 10.0), a case of insecure deserialization of user-supplied Java byte stream, which could allow an unauthenticated, remote attacker to

Amazon threat intelligence teams identify Interlock ransomware campaign targeting enterprise firewalls

Amazon threat intelligence has identified an active Interlock ransomware campaign exploiting CVE-2026-20131, a critical vulnerability in Cisco Secure Firewall Management Center (FMC) Software that could allow an unauthenticated, remote attacker to execute arbitrary Java code as root on an affected device, which was disclosed by Cisco on March 4, 2026. After Cisco’s disclosure, Amazon threat…