CVE-2012-5517

CVE-2012-5517 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The online_pages function in mm/memory_hotplug.c in the Linux kernel before 3.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact in opportunistic circumstances by using memory that was hot-added by an administrator.

Frequently asked questions

What is CVE-2012-5517?
The online_pages function in mm/memory_hotplug.c in the Linux kernel before 3.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact in opportunistic circumstances by using memory that was hot-added by an administrator.
How severe is CVE-2012-5517?
CVE-2012-5517 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2012-5517 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-5517?
CVE-2012-5517 primarily affects Linux Linux Kernel. In total, 169 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-5517?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-5517 published?
CVE-2012-5517 was published on 2012-12-21 and last updated on 2026-06-16.

References

Affected products (169)

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