CVE-2016-2774: ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurre...

Security readout for executives and security teams

This flaw lets a remote party exhaust ISC DHCP by opening many TCP sessions. The likely business impact is a DHCP service outage, which can disrupt address assignment and network access. The source bundle does not show code execution, data theft, or confirmed active exploitation. Exposure is most relevant where ISC DHCP is reachable by untrusted or broad internal networks. Internet exposure is less typical for DHCP, but enterprise segments, shared networks, and appliances using affected packages should be inventoried. Prioritize remediation where DHCP outages would disrupt production connectivity, branch access, or critical network segments. This is a service-availability issue, not a proven data compromise issue from the provided evidence. Mitigation focus: Upgrade ISC DHCP to 4.1-ESV-R13, 4.3.4, or later supported vendor packages.; Apply applicable Red Hat, Ubuntu, Fedora, openSUSE, Debian, or Oracle security updates.; Check ISC and operating-system vendor advisories for supported mitigations or package backports..

Prepared

Jun 13, 2026, 21:06 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.