Cisco Secure Email Gateway Flaw Exploited in the Wild, Enables Root Command Execution

The document is a September 2026 cybersecurity news digest covering actively exploited vulnerabilities, zero-day and exploit chains, ransomware and espionage campaigns, malicious extensions and applications, confidential-computing attacks, supply-chain compromise, phishing, and AI-assisted cyber operations. Notable incidents include active exploitation of Cisco Secure Email Gateway and Secure Firewall Management Center flaws, GitLab and Gitea vulnerabilities, JFrog Artifactory attacks, malware delivery by China- and Russia-linked actors, credential and data theft, and abuse of legitimate tools