Stay informed on the latest CISA updates, guidelines, and alerts critical for robust information security and cyber threat prevention.
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Background for this topic.
Cybersecurity and Infrastructure Security Agency (CISA) is the U.S. Department of Homeland Security agency for reducing cyber and physical risks to critical infrastructure and federal civilian networks. Created by the 2018 CISA Act, it works with government and industry, publishes alerts and guidance, and coordinates assistance during significant incidents. Its direct federal-network role chiefly covers the Federal Civilian Executive Branch, including .gov; private-sector engagement is often voluntary or sector-specific.
Practitioners use CISA advisories and the Known Exploited Vulnerabilities catalog to prioritize patching where exploitation has been observed, and consult applicable directives and incident-response guidance. CISA supports vulnerability reporting and promotes controls such as multifactor authentication, logging, and tested recovery. A CISA alert is an actionable risk signal, not proof every organization is affected; teams should verify product, version, exposure, and obligations.
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CISA added CVE-2026-20131 to its KEV catalog as it is being used in ransomware campaigns
Sysadmins are urged to patch WSUS vulnerability CVE-2025-59287 as soon as possible, with federal agencies required to update by November 14
The US Cybersecurity and Infrastructure Security Agency (CISA) has added CVE-2025-31161 to its Known Exploited Vulnerabilities (KEV) catalog
CISA recommends immediate action to address malware variant RESURGE exploiting Ivanti vulnerability CVE-2025-0282