What is CVE-2020-14300?

CVE-2020-14300 is a high-severity vulnerability in Docker, classified under Improper Check for Dropped Privileges. CVSS score: 8.8/10. Published 2020-07-13.

How severe is CVE-2020-14300?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Docker

CVE-2020-14300

The docker packages version docker-1.13.1-108.git4ef4b30.el7 as released for Red Hat Enterprise Linux 7 Extras via RHBA-2020:0053 (https://access.redhat.com/errata/RHBA-2020:0053) included an incorrect version of runc that was missing multiple bug and security fixes. One of the fixes regressed in that update was the fix for CVE-2016-9962, that was previously corrected in the docker packages in Red Hat Enterprise Linux 7 Extras via RHSA-2017:0116 (https://access.redhat.com/errata/RHSA-2017:0116). The CVE-2020-14300 was assigned to this security regression and it is specific to the docker packages produced by Red Hat. The original issue - CVE-2016-9962 - could possibly allow a process inside container to compromise a process entering container namespace and execute arbitrary code outside of the container. This could lead to compromise of the container host or other containers running on the same container host. This issue only affects a single version of Docker, 1.13.1-108.git4ef4b30, shipped in Red Hat Enterprise Linux 7. Both earlier and later versions are not affected.

Published 2020-07-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Docker — versions 1.13.1
Red Hat Enterprise Linux Server — versions 7.0
Docker — versions version 1.13.1-108.git4ef4b30 shipped in Red Hat Enterprise Linux 7

Weakness classification (CWE)

CWE-273 — Improper Check for Dropped Privileges

References

access.redhat.com/errata/RHBA-2020:0427 (Vendor Advisory)
access.redhat.com/security/cve/CVE-2016-9962 (Not Applicable)
access.redhat.com/security/vulnerabilities/cve-2016-9962 (Not Applicable)
bugzilla.redhat.com/show_bug.cgi (Not Applicable)

Frequently asked questions

What is CVE-2020-14300?: CVE-2020-14300 is a high-severity vulnerability in Docker, classified under Improper Check for Dropped Privileges. CVSS score: 8.8/10. Published 2020-07-13.
How severe is CVE-2020-14300?: High severity. CVSS v3 base score is 8.8 out of 10.