CVE-2006-1066

CVE-2006-1066 is a low-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 1.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Linux kernel 2.6.16-rc2 and earlier, when running on x86_64 systems with preemption enabled, allows local users to cause a denial of service (oops) via multiple ptrace tasks that perform single steps, which can cause corruption of the DEBUG_STACK stack during the do_debug function call.

Frequently asked questions

What is CVE-2006-1066?
Linux kernel 2.6.16-rc2 and earlier, when running on x86_64 systems with preemption enabled, allows local users to cause a denial of service (oops) via multiple ptrace tasks that perform single steps, which can cause corruption of the DEBUG_STACK stack during the do_debug function call.
How severe is CVE-2006-1066?
CVE-2006-1066 has a CVSS 2.0 base score of 1.2, rated low severity.
Is CVE-2006-1066 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-1066?
CVE-2006-1066 primarily affects Linux Linux Kernel. In total, 74 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-1066?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-1066 published?
CVE-2006-1066 was published on 2006-03-27 and last updated on 2026-06-16.

References

Affected products (74)

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