N-able Releases Second Hotfix for N-central to Counter Ongoing Exploitation of CVE-2026-18577

N-able has issued a second security hotfix for its N-central monitoring and management (RMM) solution, urging all partners to upgrade immediately. This hotfix aims to expand protections against ongoing attacks exploiting CVE-2026-18577, an authentication bypass vulnerability. Attackers have been leveraging this flaw to gain administrative access to N-central servers and pivot into managed endpoints, with observed tactics including creating rogue accounts and disabling security software.