THE Known Exploited Vulnerabilities Catalog, maintained by CISA, serves as a key resource for cybersecurity professionals to manage and prioritize vulnerabilities that are actively exploited. It emphasizes the importance of using the KEV catalog in conjunction with vulnerability management frameworks. One highlighted vulnerability is CVE-2026-55040, a weak authentication issue in Microsoft SharePoint, which can be exploited by unauthorized attackers.
Organizations are advised to apply vendor mitigations and follow CISA's guidelines on security updates. The catalog is available in various formats, including CSV and JSON, and users can subscribe for updates.