CISA Warns of Microsoft Exchange and Windows CLFS Vulnerabilities Exploited in Attacks

The Cybersecurity and Infrastructure Security Agency (CISA) has issued an urgent warning to organizations regarding two severe Microsoft vulnerabilities. On April 13, 2026, the agency officially added flaws affecting Microsoft Exchange Server and the Windows Common Log File System (CLFS) Driver to its Known Exploited Vulnerabilities (KEV) catalog. According to CISA’s latest threat intelligence update, […]

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