CVE-2013-20001

An issue was discovered in OpenZFS through 2.0.3. When an NFS share is exported to IPv6 addresses...

7.5 HighFix available

CVE-2013-20001 is a high vulnerability (CVSS 7.5) in Openzfs, published February 12, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.08%, the 81st percentile. Fixed in zfs-linux 2.1.11-1+deb12u1.

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

2.08%Up 1.2 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2013-20001
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Updated: 2026-11-02

CVE List No score

Record: CVE-2013-20001
Updated: 2026-11-02

EUVDEUVD-2013-1988 No score

Record: EUVD-2013-1988
Updated: 2026-11-02

GitHub AdvisoriesGHSA-95qf-v6r5-2v3v 7.5

An issue was discovered in OpenZFS through 2.0.3. When an NFS share is exported to IPv6 addresses...

Record: GHSA-95qf-v6r5-2v3v
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSV 7.5

Record: CVE-2013-20001
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2013-20001 7.5

Record: DEBIAN-CVE-2013-20001
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2013-20001 7.5

Record: UBUNTU-CVE-2013-20001
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVUSN-6511-1 No score

zfs-linux vulnerability

It was discovered that the OpenZFS sharenfs feature incorrectly handled IPv6 address data. This could result in IPv6 restrictions not being applied, contrary to expectations.

Record: USN-6511-1
Updated: 2026-11-02

Affected products

openzfs

Affected packages

Affected packages
Package	Affected	Fixed
`zfs-linux` Debian:12	before 2.1.11-1+deb12u1, plus listed versions 0.6.5.10-10.6.5.11-10.6.5.11-1~bpo8+10.6.5.11-1~bpo9+10.6.5.5-1 Show 45 moreShow less 0.6.5.6-10.6.5.6-20.6.5.7-10.6.5.7-20.6.5.7-2~bpo8+10.6.5.8-10.6.5.8-1~bpo8+10.6.5.8-20.6.5.8-2~bpo8+10.6.5.8-30.6.5.9-10.6.5.9-20.6.5.9-2~bpo8+10.6.5.9-30.6.5.9-40.6.5.9-50.6.5.9-5+sparc640.6.5.9-5~bpo8+10.7.11-10.7.11-1~bpo8+10.7.11-1~bpo9+10.7.11-20.7.11-30.7.12-10.7.12-1~bpo9+10.7.12-20.7.12-30.7.12-40.7.12-50.7.13-10.7.13-1~bpo10+10.7.13-1~bpo9+10.7.3-10.7.3-20.7.3-30.7.3-3~bpo8+10.7.3-3~bpo9+10.7.4-10.7.4-1~bpo8+10.7.4-1~bpo9+10.7.5-10.7.5-1~bpo9+10.7.6-10.7.6-1~bpo8+10.7.6-1~bpo9+1	2.1.11-1+deb12u1
`zfs-linux` Debian:13	before 2.2.2-1, plus listed versions 0.6.5.10-10.6.5.11-10.6.5.11-1~bpo8+10.6.5.11-1~bpo9+10.6.5.5-1 Show 45 moreShow less 0.6.5.6-10.6.5.6-20.6.5.7-10.6.5.7-20.6.5.7-2~bpo8+10.6.5.8-10.6.5.8-1~bpo8+10.6.5.8-20.6.5.8-2~bpo8+10.6.5.8-30.6.5.9-10.6.5.9-20.6.5.9-2~bpo8+10.6.5.9-30.6.5.9-40.6.5.9-50.6.5.9-5+sparc640.6.5.9-5~bpo8+10.7.11-10.7.11-1~bpo8+10.7.11-1~bpo9+10.7.11-20.7.11-30.7.12-10.7.12-1~bpo9+10.7.12-20.7.12-30.7.12-40.7.12-50.7.13-10.7.13-1~bpo10+10.7.13-1~bpo9+10.7.3-10.7.3-20.7.3-30.7.3-3~bpo8+10.7.3-3~bpo9+10.7.4-10.7.4-1~bpo8+10.7.4-1~bpo9+10.7.5-10.7.5-1~bpo9+10.7.6-10.7.6-1~bpo8+10.7.6-1~bpo9+1	2.2.2-1
`zfs-linux` Debian:14	before 2.2.2-1, plus listed versions 0.6.5.10-10.6.5.11-10.6.5.11-1~bpo8+10.6.5.11-1~bpo9+10.6.5.5-1 Show 45 moreShow less 0.6.5.6-10.6.5.6-20.6.5.7-10.6.5.7-20.6.5.7-2~bpo8+10.6.5.8-10.6.5.8-1~bpo8+10.6.5.8-20.6.5.8-2~bpo8+10.6.5.8-30.6.5.9-10.6.5.9-20.6.5.9-2~bpo8+10.6.5.9-30.6.5.9-40.6.5.9-50.6.5.9-5+sparc640.6.5.9-5~bpo8+10.7.11-10.7.11-1~bpo8+10.7.11-1~bpo9+10.7.11-20.7.11-30.7.12-10.7.12-1~bpo9+10.7.12-20.7.12-30.7.12-40.7.12-50.7.13-10.7.13-1~bpo10+10.7.13-1~bpo9+10.7.3-10.7.3-20.7.3-30.7.3-3~bpo8+10.7.3-3~bpo9+10.7.4-10.7.4-1~bpo8+10.7.4-1~bpo9+10.7.5-10.7.5-1~bpo9+10.7.6-10.7.6-1~bpo8+10.7.6-1~bpo9+1	2.2.2-1
`zfs-linux` Debian:10	before 0.7.12-2+deb10u3, plus listed versions 0.6.5.10-10.6.5.11-10.6.5.11-1~bpo8+10.6.5.11-1~bpo9+10.6.5.5-1 Show 45 moreShow less 0.6.5.6-10.6.5.6-20.6.5.7-10.6.5.7-20.6.5.7-2~bpo8+10.6.5.8-10.6.5.8-1~bpo8+10.6.5.8-20.6.5.8-2~bpo8+10.6.5.8-30.6.5.9-10.6.5.9-20.6.5.9-2~bpo8+10.6.5.9-30.6.5.9-40.6.5.9-50.6.5.9-5+sparc640.6.5.9-5~bpo8+10.7.11-10.7.11-1~bpo8+10.7.11-1~bpo9+10.7.11-20.7.11-30.7.12-10.7.12-1~bpo9+10.7.12-20.7.12-2+deb10u10.7.12-2+deb10u1~bpo9+10.7.12-2+deb10u20.7.3-10.7.3-20.7.3-30.7.3-3~bpo8+10.7.3-3~bpo9+10.7.4-10.7.4-1~bpo8+10.7.4-1~bpo9+10.7.5-10.7.5-1~bpo9+10.7.6-10.7.6-1~bpo8+10.7.6-1~bpo9+10.7.9-0.10.7.9-10.7.9-2	0.7.12-2+deb10u3
`zfs-linux` Debian:11	before 2.0.3-9+deb11u2, plus listed versions 0.6.5.10-10.6.5.11-10.6.5.11-1~bpo8+10.6.5.11-1~bpo9+10.6.5.5-1 Show 45 moreShow less 0.6.5.6-10.6.5.6-20.6.5.7-10.6.5.7-20.6.5.7-2~bpo8+10.6.5.8-10.6.5.8-1~bpo8+10.6.5.8-20.6.5.8-2~bpo8+10.6.5.8-30.6.5.9-10.6.5.9-20.6.5.9-2~bpo8+10.6.5.9-30.6.5.9-40.6.5.9-50.6.5.9-5+sparc640.6.5.9-5~bpo8+10.7.11-10.7.11-1~bpo8+10.7.11-1~bpo9+10.7.11-20.7.11-30.7.12-10.7.12-1~bpo9+10.7.12-20.7.12-30.7.12-40.7.12-50.7.13-10.7.13-1~bpo10+10.7.13-1~bpo9+10.7.3-10.7.3-20.7.3-30.7.3-3~bpo8+10.7.3-3~bpo9+10.7.4-10.7.4-1~bpo8+10.7.4-1~bpo9+10.7.5-10.7.5-1~bpo9+10.7.6-10.7.6-1~bpo8+10.7.6-1~bpo9+1	2.0.3-9+deb11u2
`zfs-linux` Ubuntu:16.04:LTS	All versions, plus listed versions 0.6.4.2-0ubuntu10.6.5.3-0ubuntu20.6.5.3-0ubuntu30.6.5.3-0ubuntu40.6.5.3-0ubuntu5 Show 31 moreShow less 0.6.5.3-0ubuntu60.6.5.4-0ubuntu10.6.5.4-0ubuntu20.6.5.4-0ubuntu30.6.5.4-0ubuntu40.6.5.4-0ubuntu50.6.5.4-0ubuntu60.6.5.6-0ubuntu50.6.5.6-0ubuntu60.6.5.6-0ubuntu70.6.5.6-0ubuntu80.6.5.6-0ubuntu90.6.5.6-0ubuntu100.6.5.6-0ubuntu120.6.5.6-0ubuntu130.6.5.6-0ubuntu140.6.5.6-0ubuntu150.6.5.6-0ubuntu160.6.5.6-0ubuntu170.6.5.6-0ubuntu180.6.5.6-0ubuntu190.6.5.6-0ubuntu200.6.5.6-0ubuntu210.6.5.6-0ubuntu230.6.5.6-0ubuntu240.6.5.6-0ubuntu250.6.5.6-0ubuntu260.6.5.6-0ubuntu270.6.5.6-0ubuntu280.6.5.6-0ubuntu290.6.5.6-0ubuntu30	None known
`zfs-linux` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 0.6.5.11-1ubuntu30.6.5.11-1ubuntu40.6.5.11-1ubuntu50.6.5.11-1ubuntu60.7.5-1ubuntu2 Show 25 moreShow less 0.7.5-1ubuntu30.7.5-1ubuntu40.7.5-1ubuntu50.7.5-1ubuntu60.7.5-1ubuntu70.7.5-1ubuntu80.7.5-1ubuntu90.7.5-1ubuntu100.7.5-1ubuntu110.7.5-1ubuntu120.7.5-1ubuntu130.7.5-1ubuntu140.7.5-1ubuntu150.7.5-1ubuntu160.7.5-1ubuntu16.20.7.5-1ubuntu16.30.7.5-1ubuntu16.40.7.5-1ubuntu16.60.7.5-1ubuntu16.70.7.5-1ubuntu16.80.7.5-1ubuntu16.90.7.5-1ubuntu16.100.7.5-1ubuntu16.110.7.5-1ubuntu16.120.7.5-1ubuntu16.12+esm1	None known
`zfs-linux` Ubuntu:20.04:LTS	before 0.8.3-1ubuntu12.16, plus listed versions 0.8.1-1ubuntu140.8.1-1ubuntu150.8.1-1ubuntu160.8.1-1ubuntu170.8.2-3ubuntu1 Show 30 moreShow less 0.8.2-3ubuntu20.8.2-3ubuntu30.8.2-3ubuntu40.8.2-3ubuntu50.8.3-1ubuntu20.8.3-1ubuntu30.8.3-1ubuntu40.8.3-1ubuntu50.8.3-1ubuntu60.8.3-1ubuntu70.8.3-1ubuntu80.8.3-1ubuntu90.8.3-1ubuntu100.8.3-1ubuntu110.8.3-1ubuntu120.8.3-1ubuntu12.10.8.3-1ubuntu12.20.8.3-1ubuntu12.30.8.3-1ubuntu12.40.8.3-1ubuntu12.50.8.3-1ubuntu12.60.8.3-1ubuntu12.70.8.3-1ubuntu12.80.8.3-1ubuntu12.90.8.3-1ubuntu12.100.8.3-1ubuntu12.110.8.3-1ubuntu12.120.8.3-1ubuntu12.130.8.3-1ubuntu12.140.8.3-1ubuntu12.15	0.8.3-1ubuntu12.16
`zfs-linux` Ubuntu:22.04:LTS	before 2.1.5-1ubuntu6~22.04.2, plus listed versions 2.0.6-1ubuntu22.0.6-1ubuntu32.1.2-1ubuntu12.1.2-1ubuntu22.1.2-1ubuntu32.1.4-0ubuntu0.12.1.5-1ubuntu6~22.04.1	2.1.5-1ubuntu6~22.04.2

History

History
When	Changed	Sources
2026-11-02	created	CVE List, EUVD, GitHub Advisories, NVD, OSV

References

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This page doesn't list everything

Left out here: 346 versions. The JSON record has them.