CVE-2013-6368: The KVM subsystem in the Linux kernel through 3.12.5 allows local users to gain privileges or cause a denia...

Security readout for executives and security teams

CVE-2013-6368 is an old Linux kernel KVM flaw that could let a local user gain higher privileges or crash the system. Business risk is concentrated on virtualization hosts or systems where untrusted users can access KVM. The bundle shows vendor advisories and an upstream kernel commit, but no KEV listing or cited active exploitation. Exposure is most likely on legacy Linux systems running kernels through 3.12.5 or vendor builds missing the referenced fixes, especially KVM virtualization hosts with local user or tenant access. Modern supported kernels are less likely exposed, but vendor backport status must be verified per distribution package. Prioritize if the organization still runs legacy Linux virtualization hosts or allows untrusted local access. The vulnerability is old, but kernel privilege escalation and host crash risk can be serious in shared infrastructure. If all kernels are currently supported and patched, urgency is mainly verification and documentation. Mitigation focus: Apply the relevant vendor kernel update from Ubuntu, Red Hat, openSUSE, or your Linux distributor.; Verify the upstream KVM fix is present in custom or self-built kernels.; Restrict KVM access to trusted administrators until affected systems are patched..

Prepared

Jun 14, 2026, 15:13 UTC (UTC+00:00)

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