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Fencer Intel
high 7.5

CVE-2013-20001 json

An issue was discovered in OpenZFS through 2.0.3.

published 5y ago modified 4mo ago also EUVD-2013-1988

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

An issue was discovered in OpenZFS through 2.0.3. When an NFS share is exported to IPv6 addresses via the sharenfs feature, there is a silent failure to parse the IPv6 address data, and access is allowed to everyone. IPv6 restrictions from the configuration are not applied.

Patch / fix

  • zfs-linux Debian 12 2.1.11-1+deb12u1
  • zfs-linux Debian 14, Debian 13 2.2.2-1

debian advisories DEBIAN-CVE-2013-20001

  • zfs-linux Ubuntu 20.04 LTS 0.8.3-1ubuntu12.16
  • zfs-linux Ubuntu 22.04 LTS 2.1.5-1ubuntu6~22.04.2

ubuntu advisories UBUNTU-CVE-2013-20001

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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Exploit prediction

2.11% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/openzfs/zfs/issues/1894#issuecomment-30693652 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.