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CVE-2020-13401

Improper Input Validation in Docker Engine

6.0 MediumPublic exploitFix available

An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
Low

Exploit likelihood

2.86%Down 7.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.0

An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.

Record
CVE-2020-13401
CVSS 3.1
6.0 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
CVSS 2.0
6.0 MediumAV:N/AC:M/Au:S/C:P/I:P/A:P
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.

Record
CVE-2020-13401
Updated
2026-11-02
EUVDEUVD-2022-1160 No score

An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.

Record
EUVD-2022-1160
Updated
2026-11-03
GitHub AdvisoriesGHSA-qrrc-ww9x-r43g 6.0

Improper Input Validation in Docker Engine

An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.

Record
GHSA-qrrc-ww9x-r43g
CVSS 3.1
6.0 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-20
Updated
2026-11-02
OSVALPINE-CVE-2020-13401 6.0

An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.

Record
ALPINE-CVE-2020-13401
CVSS 3.1
6.0 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
Updated
2026-11-03
OSVBELL-CVE-2020-13401 6.0

CVE-2020-13401 does not affect BellSoft software

Record
BELL-CVE-2020-13401
CVSS 3.1
6.0 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
Updated
2026-11-02
Show 13 moreShow less
OSV 6.0

An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.

Record
CVE-2020-13401
CVSS 3.1
6.0 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
Updated
2026-11-02
OSVDEBIAN-CVE-2020-13401 6.0

An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.

Record
DEBIAN-CVE-2020-13401
CVSS 3.1
6.0 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
Updated
2026-11-02
OSVGHSA-qrrc-ww9x-r43g 6.0

Improper Input Validation in Docker Engine

An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.

Record
GHSA-qrrc-ww9x-r43g
CVSS 3.1
6.0 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-20
Updated
2026-11-02
OSVUBUNTU-CVE-2020-13401 6.0

An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.

Record
UBUNTU-CVE-2020-13401
CVSS 3.1
6.0 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
Updated
2026-11-02
OSVMGASA-2020-0279 No score

Updated docker packages fix security vulnerability

Updated docker packages fix security vulnerability:

A flaw was found in Docker when it creates network bridges that accept IPv6 router advertisements by default. This flaw allows an attacker who can execute code in a container to possibly spoof rogue IPv6 router advertisements to perform a man-in-the-middle (MitM) attack against the host network or another container (CVE-2020-13401).

Record
MGASA-2020-0279
Updated
2026-11-02
OSVopenSUSE-SU-2020:0846-1 No score

Security update for containerd, docker, docker-runc, golang-github-docker-libnetwork

This update for containerd, docker, docker-runc, golang-github-docker-libnetwork fixes the following issues:

Docker was updated to 19.03.11-ce runc was updated to version 1.0.0-rc10 containerd was updated to version 1.2.13

  • CVE-2020-13401: Fixed an issue where an attacker with CAP_NET_RAW capability, could have crafted IPv6 router advertisements, and spoof external IPv6 hosts, resulting in obtaining sensitive information or causing denial of service (bsc#1172377).

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2020:0846-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10722-1 No score

docker-20.10.6_ce-2.1 on GA media

These are all security issues fixed in the docker-20.10.6_ce-2.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10722-1
Updated
2026-11-02
OSVopenSUSE-SU-2025:15589-1 No score

docker-stable-24.0.9_ce-15.1 on GA media

These are all security issues fixed in the docker-stable-24.0.9_ce-15.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:15589-1
Updated
2026-11-02
OSVSUSE-SU-2020:1657-1 No score

Security update for containerd, docker, docker-runc, golang-github-docker-libnetwork

This update for containerd, docker, docker-runc, golang-github-docker-libnetwork fixes the following issues:

Docker was updated to 19.03.11-ce runc was updated to version 1.0.0-rc10 containerd was updated to version 1.2.13

  • CVE-2020-13401: Fixed an issue where an attacker with CAP_NET_RAW capability, could have crafted IPv6 router advertisements, and spoof external IPv6 hosts, resulting in obtaining sensitive information or causing denial of service (bsc#1172377).
Record
SUSE-SU-2020:1657-1
Updated
2026-11-02
OSVSUSE-SU-2020:1657-2 No score

Security update for containerd, docker, docker-runc, golang-github-docker-libnetwork

This update for containerd, docker, docker-runc, golang-github-docker-libnetwork fixes the following issues:

Docker was updated to 19.03.11-ce runc was updated to version 1.0.0-rc10 containerd was updated to version 1.2.13

  • CVE-2020-13401: Fixed an issue where an attacker with CAP_NET_RAW capability, could have crafted IPv6 router advertisements, and spoof external IPv6 hosts, resulting in obtaining sensitive information or causing denial of service (bsc#1172377).
Record
SUSE-SU-2020:1657-2
Updated
2026-11-02
OSVSUSE-SU-2020:1664-1 No score

Security update for containerd, docker, docker-runc, golang-github-docker-libnetwork

This update for containerd, docker, docker-runc, golang-github-docker-libnetwork fixes the following issues: Docker was updated to 19.03.11-ce runc was updated to version 1.0.0-rc10 containerd was updated to version 1.2.13

  • CVE-2020-13401: Fixed an issue where an attacker with CAP_NET_RAW capability, could have crafted IPv6 router advertisements, and spoof external IPv6 hosts, resulting in obtaining sensitive information or causing denial of service (bsc#1172377).
Record
SUSE-SU-2020:1664-1
Updated
2026-11-02
OSVSUSE-SU-2025:03540-1 No score

Security update for docker-stable

This update for docker-stable fixes the following issues:

  • Include historical changelog data from before the docker-stable fork. The initial changelog entry did technically provide all the necessary information, but our CVE tracking tools do not understand how the package is forked and so it seems that this package does not include fixes for ~12 years of updates. So, include a copy of the original package's changelog up until the fork point. (bsc#1250596)

  • Remove git-core recommends on SLE. Most SLE systems have installRecommends=yes by default and thus end up installing git with Docker. bsc#1250508

    This feature is mostly intended for developers ('docker build git://') so most users already have the dependency installed, and the error when git is missing is fairly straightforward (so they can easily figure out what they need to install).

  • Backport https://github.com/moby/moby/pull/48517. bsc#1247362

  • Update to docker-buildx v0.25.0. Upstream changelog: https://github.com/docker/buildx/releases/tag/v0.25.0

  • Do not try to inject SUSEConnect secrets when in Rootless Docker mode, as Docker does not have permission to access the host zypper credentials in this mode (and unprivileged users cannot disable the feature using /etc/docker/suse-secrets-enable.) bsc#1240150

  • Initial docker-stable fork, forked from Docker 24.0.7-ce release (packaged on 2024-02-14). The original changelog is included below for historical reference.

Record
SUSE-SU-2025:03540-1
Updated
2026-11-02
OSVSUSE-SU-2025:03545-1 No score

Security update for docker-stable

This update for docker-stable fixes the following issues:

Note this update contains a already fixed references mostly.

  • Remove git-core recommends on SLE to avoid pulling it in unnecessary. (bsc#1250508)

    This feature is mostly intended for developers ('docker build git://') so most users already have the dependency installed, and the error when git is missing is fairly straightforward (so they can easily figure out what they need to install).

  • Include historical changelog data from before the docker-stable fork. The initial changelog entry did technically provide all the necessary information, but our CVE tracking tools do not understand how the package is forked and so it seems that this package does not include fixes for ~12 years of updates. So, include a copy of the original package's changelog up until the fork point. bsc#1250596

  • Update to docker-buildx v0.25.0. Upstream changelog: https://github.com/docker/buildx/releases/tag/v0.25.0

  • Update to Go 1.23 for building now that upstream has switched their 23.0.x LTSS to use Go 1.23.

  • Do not try to inject SUSEConnect secrets when in Rootless Docker mode, as Docker does not have permission to access the host zypper credentials in this mode (and unprivileged users cannot disable the feature using /etc/docker/suse-secrets-enable.) bsc#1240150

  • Initial docker-stable fork, forked from Docker 24.0.7-ce release (packaged on 2024-02-14). The original changelog is included below for historical reference.

Record
SUSE-SU-2025:03545-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/docker/docker-ce
Go
before 19.03.11
19.03.11
docker
Alpine:v3.12
before 19.03.11-r0
19.03.11-r0
docker
Alpine:v3.13
before 19.03.11-r0
19.03.11-r0
docker
Alpine:v3.14
before 19.03.11-r0
19.03.11-r0
docker
Alpine:v3.15
before 19.03.11-r0
19.03.11-r0
docker
Alpine:v3.16
before 19.03.11-r0
19.03.11-r0
docker
Alpine:v3.17
before 19.03.11-r0
19.03.11-r0
docker
Alpine:v3.18
before 19.03.11-r0
19.03.11-r0
docker
Alpine:v3.19
before 19.03.11-r0
19.03.11-r0
docker
Alpine:v3.20
before 19.03.11-r0
19.03.11-r0
Show 47 moreShow less
Affected packages
PackageAffectedFixed
docker
Alpine:v3.21
before 19.03.11-r0
19.03.11-r0
docker
Alpine:v3.22
before 19.03.11-r0
19.03.11-r0
docker
Alpine:v3.23
before 19.03.11-r0
19.03.11-r0
docker
Alpine:v3.24
before 19.03.11-r0
19.03.11-r0
docker.io
Debian:12
before 19.03.11+dfsg1-1
19.03.11+dfsg1-1
docker.io
Debian:13
before 19.03.11+dfsg1-1
19.03.11+dfsg1-1
docker.io
Debian:14
before 19.03.11+dfsg1-1
19.03.11+dfsg1-1
docker.io
Debian:10
before 18.09.1+dfsg1-7.1+deb10u2, plus listed versions
18.09.1+dfsg1-7.118.09.1+dfsg1-7.1+deb10u1
18.09.1+dfsg1-7.1+deb10u2
docker
Mageia:7
before 18.09.9-1.1.mga7
18.09.9-1.1.mga7
containerd
SUSE:Linux Enterprise Module for Containers 15 SP1
before 1.2.13-5.22.2
1.2.13-5.22.2
docker
SUSE:Linux Enterprise Module for Containers 15 SP1
before 19.03.11_ce-6.34.2
19.03.11_ce-6.34.2
docker-runc
SUSE:Linux Enterprise Module for Containers 15 SP1
before 1.0.0rc10+gitr3981_dc9208a3303f-6.38.2
1.0.0rc10+gitr3981_dc9208a3303f-6.38.2
golang-github-docker-libnetwork
SUSE:Linux Enterprise Module for Containers 15 SP1
before 0.7.0.1+gitr2902_153d0769a118-4.21.2
0.7.0.1+gitr2902_153d0769a118-4.21.2
containerd
SUSE:Linux Enterprise Module for Containers 15 SP2
before 1.2.13-5.22.2
1.2.13-5.22.2
docker
SUSE:Linux Enterprise Module for Containers 15 SP2
before 19.03.11_ce-6.34.2
19.03.11_ce-6.34.2
docker-runc
SUSE:Linux Enterprise Module for Containers 15 SP2
before 1.0.0rc10+gitr3981_dc9208a3303f-6.38.2
1.0.0rc10+gitr3981_dc9208a3303f-6.38.2
golang-github-docker-libnetwork
SUSE:Linux Enterprise Module for Containers 15 SP2
before 0.7.0.1+gitr2902_153d0769a118-4.21.2
0.7.0.1+gitr2902_153d0769a118-4.21.2
containerd
SUSE:Linux Enterprise Module for Containers 12
before 1.2.13-16.29.1
1.2.13-16.29.1
docker
SUSE:Linux Enterprise Module for Containers 12
before 19.03.11_ce-98.54.1
19.03.11_ce-98.54.1
docker-runc
SUSE:Linux Enterprise Module for Containers 12
before 1.0.0rc10+gitr3981_dc9208a3303f-1.46.1
1.0.0rc10+gitr3981_dc9208a3303f-1.46.1
golang-github-docker-libnetwork
SUSE:Linux Enterprise Module for Containers 12
before 0.7.0.1+gitr2902_153d0769a118-31.1
0.7.0.1+gitr2902_153d0769a118-31.1
docker-stable
SUSE:Linux Enterprise Server 12 SP5-LTSS
From an advisory covering 53 CVEs
before 24.0.9_ce-1.20.1
24.0.9_ce-1.20.1
docker-stable
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
From an advisory covering 53 CVEs
before 24.0.9_ce-1.20.1
24.0.9_ce-1.20.1
docker-stable
SUSE:Linux Enterprise Module for Containers 15 SP6
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise Module for Containers 15 SP7
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise Server 15 SP3-LTSS
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise Server 15 SP5-LTSS
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise Server for SAP Applications 15 SP3
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
SUSE:Enterprise Storage 7.1
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker-stable
openSUSE:Leap 15.6
From an advisory covering 53 CVEs
before 24.0.9_ce-150000.1.25.1
24.0.9_ce-150000.1.25.1
docker.io
Ubuntu:Pro:16.04:LTS
All versions, plus listed versions
1.6.2~dfsg1-1ubuntu41.10.2-0ubuntu31.10.2-0ubuntu41.10.3-0ubuntu11.10.3-0ubuntu4
Show 19 moreShow less
1.10.3-0ubuntu51.10.3-0ubuntu61.11.2-0ubuntu5~16.041.12.1-0ubuntu13~16.04.11.12.3-0ubuntu4~16.04.21.12.6-0ubuntu1~16.04.11.13.1-0ubuntu1~16.04.217.03.2-0ubuntu2~16.04.118.06.1-0ubuntu1~16.04.218.06.1-0ubuntu1.2~16.04.118.09.2-0ubuntu1~16.04.118.09.5-0ubuntu1~16.04.218.09.7-0ubuntu1~16.04.118.09.7-0ubuntu1~16.04.418.09.7-0ubuntu1~16.04.518.09.7-0ubuntu1~16.04.618.09.7-0ubuntu1~16.04.718.09.7-0ubuntu1~16.04.9+esm118.09.7-0ubuntu1~16.04.9+esm2
None known
docker.io
Ubuntu:18.04:LTS
before 20.10.7-0ubuntu1~18.04.1, plus listed versions
1.13.1-0ubuntu617.03.2-0ubuntu117.03.2-0ubuntu317.03.2-0ubuntu517.12.1-0ubuntu1
Show 12 moreShow less
18.06.1-0ubuntu1~18.04.118.06.1-0ubuntu1.2~18.04.118.09.2-0ubuntu1~18.04.118.09.5-0ubuntu1~18.04.218.09.7-0ubuntu1~18.04.118.09.7-0ubuntu1~18.04.318.09.7-0ubuntu1~18.04.419.03.6-0ubuntu1~18.04.119.03.6-0ubuntu1~18.04.219.03.6-0ubuntu1~18.04.320.10.2-0ubuntu1~18.04.220.10.2-0ubuntu1~18.04.3
20.10.7-0ubuntu1~18.04.1
docker.io
Ubuntu:20.04:LTS
before 20.10.7-0ubuntu1~20.04.1, plus listed versions
19.03.2-0ubuntu119.03.6-0ubuntu119.03.8-0ubuntu119.03.8-0ubuntu1.20.0419.03.8-0ubuntu1.20.04.119.03.8-0ubuntu1.20.04.220.10.2-0ubuntu1~20.04.220.10.2-0ubuntu1~20.04.3
20.10.7-0ubuntu1~20.04.1
containerd
openSUSE:Leap 15.1
before 1.2.13-lp151.2.12.1
1.2.13-lp151.2.12.1
docker
openSUSE:Leap 15.1
before 19.03.11_ce-lp151.2.18.1
19.03.11_ce-lp151.2.18.1
docker-runc
openSUSE:Leap 15.1
before 1.0.0rc10+gitr3981_dc9208a3303f-lp151.3.21.1
1.0.0rc10+gitr3981_dc9208a3303f-lp151.3.21.1
golang-github-docker-libnetwork
openSUSE:Leap 15.1
before 0.7.0.1+gitr2902_153d0769a118-lp151.2.12.1
0.7.0.1+gitr2902_153d0769a118-lp151.2.12.1
docker
openSUSE:Tumbleweed
From an advisory covering 14 CVEs
before 20.10.6_ce-2.1
20.10.6_ce-2.1
docker-stable
openSUSE:Tumbleweed
From an advisory covering 43 CVEs
before 24.0.9_ce-15.1
24.0.9_ce-15.1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubarax-zaeimi/Docker-Container-CVE-2020-134012021-03-31

History

History
RecordedChangedSources
affected, facts
affected, aliases, referencesOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-13401 is a medium vulnerability (CVSS 6.0) in Docker Engine, published June 2, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.86%, the 86th percentile. Fixed in github.com/docker/docker-ce 19.03.11.

References

Show 194 moreShow less
This page doesn't list everything

Left out here: 70 references. The JSON record has them.

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