Vulnerability Database

309,130

Total vulnerabilities in the database

CVE-2021-3178

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

  • Published: Jan 19, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-3178
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.5
  • AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5.5
  • AV:N/AC:L/Au:S/C:P/I:P/A:N

CWEs:

OWASP TOP 10:

Software From Fixed in
linux / linux_kernel - 5.10.8.x
fedoraproject / fedora 33 33.x
debian / debian_linux 9.0 9.0.x