How severe is CVE-2010-1636?

CVE-2010-1636 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-2010-1636 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-1636?

CVE-2010-1636 primarily affects Linux Linux Kernel. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-1636?

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

When was CVE-2010-1636 published?

CVE-2010-1636 was published on 2010-06-08 and last updated on 2026-06-16.

CVE-2010-1636

CVE-2010-1636 is a low-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 2.1. 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-200.

Key facts

Severity: Low (CVSS 2.0 base score 2.1)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Linux Linux Kernel
Published: 2010-06-08
Last modified: 2026-06-16

Description

The btrfs_ioctl_clone function in fs/btrfs/ioctl.c in the btrfs functionality in the Linux kernel 2.6.29 through 2.6.32, and possibly other versions, does not ensure that a cloned file descriptor has been opened for reading, which allows local users to read sensitive information from a write-only file descriptor.

Frequently asked questions

What is CVE-2010-1636?: The btrfs_ioctl_clone function in fs/btrfs/ioctl.c in the btrfs functionality in the Linux kernel 2.6.29 through 2.6.32, and possibly other versions, does not ensure that a cloned file descriptor has been opened for reading, which allows local users to read sensitive information from a write-only file descriptor.
How severe is CVE-2010-1636?: CVE-2010-1636 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2010-1636 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-1636?: CVE-2010-1636 primarily affects Linux Linux Kernel. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-1636?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-1636 published?: CVE-2010-1636 was published on 2010-06-08 and last updated on 2026-06-16.

References

Affected products (33)

cpe:2.3:o:linux:linux_kernel:2.6.29:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.29.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.29.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.29.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.29.4:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.29.5:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.29.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.30:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.30.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.30.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.30.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.30.4:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.30.5:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.30.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.30.7:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.30.8:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.30.9:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.30.10:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.4:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.5:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.7:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.8:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.9:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.10:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.11:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.12:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.31.13:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.32:*:*:*:*:*:*:*

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