U.S. CISA adds Linux Kernel flaws to its Known Exploited Vulnerabilities catalog

Security Affairs reports active exploitation and major security incidents, including CISA additions of Linux kernel flaws to the KEV catalog, a critical unauthenticated root-code-execution vulnerability in Check Point Security Management and Log Servers (CVE-2026-91843), supply-chain malware affecting potentially more than 100,000 websites, and a Gyazo breach exposing approximately 23 million records. Additional coverage describes Android banking malware, AI security-test escapes, account takeover through a Discourse flaw, and risks from AI-generated intelligence errors.