Is CVE-2013-20001 in the CISA KEV catalog?

No. CVE-2013-20001 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-20001?

CVE-2013-20001 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2013-20001?

CVE-2013-20001 has an EPSS score of 2.08% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2013-20001?

Upgrade zfs-linux on debian 11 to 2.0.3-9+deb11u2 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2013-20001

HIGHEPSS 79th pctl

7.5

CVSS v3

NVD

Description

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.

How to fix

Remediation Available

zfs-linuxDebian

Fixed in:2.0.3-9+deb11u2CVE-2013-20001

Fixed in:2.1.11-1+deb12u1CVE-2013-20001

Fixed in:2.2.2-1CVE-2013-20001

libuutil1linuxUbuntu

Fixed in:0.8.3-1ubuntu12.16USN-6511-1

libuutil3linuxUbuntu

Fixed in:2.1.5-1ubuntu6~22.04.2USN-6511-1

Fixed in:2.1.9-2ubuntu1.2USN-6511-1

zfs-linuxUbuntu

Fixed in:0.8.3-1ubuntu12.16USN-6511-1

Fixed in:2.1.5-1ubuntu6~22.04.2USN-6511-1

Fixed in:2.1.9-2ubuntu1.2USN-6511-1

zfsutils-linuxUbuntu

Fixed in:0.8.3-1ubuntu12.16USN-6511-1

Fixed in:2.1.5-1ubuntu6~22.04.2USN-6511-1

Fixed in:2.1.9-2ubuntu1.2USN-6511-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

2.08%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Exploit1

github.com

Third-Party Advisory1

github.com

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.