CVE-2011-1083: The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epol...

Security readout for executives and security teams

CVE-2011-1083 is a local denial-of-service flaw in older Linux kernels. A user with local execution ability could make the kernel consume CPU through crafted epoll usage. It is mainly a risk for legacy or unpatched Linux systems, especially shared hosting, multi-user servers, or container hosts with old kernels. Exposure is most likely on systems still running Linux kernel 2.6.37.2 or earlier, or vendor kernels that had not incorporated the relevant epoll fixes. Internet reachability alone is not enough; the attacker needs local code execution or an equivalent local workload path. Treat this as a legacy infrastructure hygiene issue with elevated priority on shared systems. It is not evidenced as actively exploited in the supplied sources, but unpatched local denial-of-service bugs can still create business disruption on old Linux platforms. Mitigation focus: Inventory Linux kernel versions across servers and appliances.; Apply relevant vendor kernel security updates from distribution advisories.; Prioritize shared, multi-user, and multi-tenant Linux hosts..

Prepared

Jun 24, 2026, 13:28 UTC (UTC+00:00)

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