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CVE-2021-3178
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2021-01-19T07:15:13.443 · Last modified 2026-06-17T04:04:47.713

Summary

fs/nfsd/nfs3xdr.c in the Linux kernel through 5.10.8, when there is an NFS export of a subdirectory of a filesystem, allows remote attackers to traverse to other parts of the filesystem via READDIRPLUS. NOTE: some parties argue that such a subdirectory export is not intended to prevent this attack; see also the exports(5) no_subtree_check default behavior

Affected products

linux — linux_kernel

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.