Atomic OSSEC is an Endpoint Detection and Response (EDR) solution that provides the security strength, innovation, and coverage enterprises and federal agencies require. On-prem, cloud, hybrid and air gapped environments. Learn More
Atomic OSSEC / OSSEC 4.0.0 Release Notes
March 23, 2026
Release Maintainers Dan Parriott Scott R. Shinn (Atomicorp) Release Notes Major security and stability release addressing critical memory safety issues and modernizing cryptographic implementations. This release includes fixes for multiple heap use-after-free (UAF) vulnerabilities, uncontrolled recursion in XML parsing, and implementation of secure random number generation for agent key creation. Additionally, file integrity monitoring has […]