How severe is CVE-2010-4668?

CVE-2010-4668 has a CVSS 2.0 base score of 4.7, rated medium severity.

Is CVE-2010-4668 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4668?

CVE-2010-4668 primarily affects Linux Linux Kernel. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4668?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-4668 published?

CVE-2010-4668 was published on 2011-01-03 and last updated on 2026-06-16.

CVE-2010-4668

CVE-2010-4668 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 2.0 base score 4.7)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Linux Linux Kernel
Published: 2011-01-03
Last modified: 2026-06-16

Description

The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 2.6.37-rc7 allows local users to cause a denial of service (panic) via a zero-length I/O request in a device ioctl to a SCSI device, related to an unaligned map. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4163.

Frequently asked questions

What is CVE-2010-4668?: The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 2.6.37-rc7 allows local users to cause a denial of service (panic) via a zero-length I/O request in a device ioctl to a SCSI device, related to an unaligned map. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4163.
How severe is CVE-2010-4668?: CVE-2010-4668 has a CVSS 2.0 base score of 4.7, rated medium severity.
Is CVE-2010-4668 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4668?: CVE-2010-4668 primarily affects Linux Linux Kernel. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4668?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-4668 published?: CVE-2010-4668 was published on 2011-01-03 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.37:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.37:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.37:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.37:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.37:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.37:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.37:rc6:*:*:*:*:*:*

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