CVE-2007-0006: The key serial number collision avoidance code in the key_alloc_serial function in Linux kernel 2.6.9 up to...

Security readout for executives and security teams

CVE-2007-0006 is an old Linux kernel flaw where a local user could crash a vulnerable system. It affects Linux kernel 2.6.9 through 2.6.20 according to the CVE source bundle. The available evidence supports denial of service, not data theft or remote takeover. Exposure is most plausible on legacy Linux systems still running kernels in the 2.6.9 to 2.6.20 range, including vendor-maintained distributions referenced by Red Hat, Ubuntu, Mandriva, and SUSE advisories. Internet exposure alone is not enough; the CVE describes local-user attack conditions. Prioritize remediation where legacy Linux hosts still allow interactive or multi-user local access. This is less urgent than a remotely exploitable kernel flaw, but a reliable local crash can disrupt critical services and shared systems. Mitigation focus: Apply the relevant vendor kernel update from Red Hat, Ubuntu, Mandriva, SUSE, or your distribution.; Retire or isolate systems running Linux kernel 2.6.9 through 2.6.20.; Limit untrusted local shell access until affected kernels are remediated..

Prepared

Jun 29, 2026, 07:36 UTC (UTC+00:00)

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