CVE-2010-2071

CVE-2010-2071 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 4.6. 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-264.

Key facts

Description

The btrfs_xattr_set_acl function in fs/btrfs/acl.c in btrfs in the Linux kernel 2.6.34 and earlier does not check file ownership before setting an ACL, which allows local users to bypass file permissions by setting arbitrary ACLs, as demonstrated using setfacl.

Frequently asked questions

What is CVE-2010-2071?
The btrfs_xattr_set_acl function in fs/btrfs/acl.c in btrfs in the Linux kernel 2.6.34 and earlier does not check file ownership before setting an ACL, which allows local users to bypass file permissions by setting arbitrary ACLs, as demonstrated using setfacl.
How severe is CVE-2010-2071?
CVE-2010-2071 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2010-2071 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-2071?
CVE-2010-2071 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-2071?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-2071 published?
CVE-2010-2071 was published on 2010-06-16 and last updated on 2026-06-16.

References

Affected products (1)

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