runc through 1.0.0-rc8, as used in Docker through 19.03.2-ce and other products, allows AppArmor restriction bypass because libcontainer/rootfs_linux.go incorrectly checks mount targets, and thus a malicious Docker image can mount over a /proc directory.
CVE-2019-16884
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 4.4%, top 10% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation4% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 90.3%
- KEV
- Not listed
Published
September 25, 2019
Last Modified
November 21, 2024
References (30)
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-10/msg00073.html
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00009.html
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2020-01/msg00010.html
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:3940
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:4074
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:4269
- cve@mitrehttps://github.com/opencontainers/runc/issues/2128
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2023/02/msg00016.html
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2023/03/msg00023.html
- cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62OQ2P7K5YDZ5BRCH2Q6DHUJIHQD3QCD/
- cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DGK6IV5JGVDXHOXEKJOJWKOVNZLT6MYR/
- cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPK4JWP32BUIVDJ3YODZSOEVEW6BHQCF/
- cve@mitrehttps://security.gentoo.org/glsa/202003-21
- cve@mitrehttps://security.netapp.com/advisory/ntap-20220221-0004/
- cve@mitrehttps://usn.ubuntu.com/4297-1/
Patch Availability(7)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | runc (1.0.0~rc10-0ubuntu1~19.10.2) @ eoan | 2026-05-27 | ubuntu |
| ubuntu | runc (1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm2) @ xenial | 2026-05-27 | ubuntu |
| redhat | docker-2:1.13.1-161.git64e9980.el7_8 | 2020-04-01 | redhat |
| redhat | runc-0:1.0.0-67.rc10.el7_8 | 2020-04-01 | redhat |
| redhat | container-tools:rhel8-8010020191126140055.c294d161 | 2019-12-17 | redhat |
| redhat | runc-0:1.0.0-63.rc8.el8 | 2019-12-03 | redhat |
| redhat | runc-0:1.0.0-62.rc8.rhaos4.1.git3cbe540.el8 | 2019-11-21 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(2 across 1 ecosystem)
Go(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/opencontainers/runc | — | 1.0.0-rc8.0.20190930145003-cad42f6e0932 | — |
| github.com/opencontainers/selinux | — | 1.3.1-0.20190929122143-5215b1806f52 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(8)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
- Microsoft MSRCCVE-2019-168842021-07-16
runc through 1.0.0-rc8 as used in Docker through 19.03.2-ce and other products allows AppArmor restriction bypass because libcontainer/rootfs_linux.go incorrectly checks mount targets and thus a malicious Docker image can mount over a /proc directory.
- Red HatRHBA-2020:1232MODERATE2019-09-22
RHBA-2020:1232 — Moderate
- Red HatRHSA-2019:3940MODERATE2019-09-22
RHSA-2019:3940 — Moderate
- Red HatRHSA-2019:4074MODERATE2019-09-22
RHSA-2019:4074 — Moderate
- Red HatRHSA-2019:4269MODERATE2019-09-22
RHSA-2019:4269 — Moderate
- Red HatRHSA-2020:1234MODERATE2019-09-22
RHSA-2020:1234 — Moderate
- UbuntuUSN-4297-1MEDIUM
runC vulnerabilities
- UbuntuUSN-4867-1MEDIUM
runC vulnerabilities
Data Freshness Timeline
(refreshed 15× in last 7d / 47× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 01:41 UTCEG score recompute
- 2026-07-22 22:21 UTCEG score recompute
- 2026-07-22 14:05 UTCEPSS rescore
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- 2026-07-20 05:40 UTCOSV refresh
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- 2026-07-02 22:05 UTCOSV refresh
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- 2026-06-14 18:13 UTCOSV refresh
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- 2026-05-27 13:57 UTCEG score recompute
- 2026-05-27 13:57 UTCVendor advisory
- 2026-05-27 13:38 UTCEPSS rescore
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- 2026-05-24 22:56 UTCOSV refresh
Frequently asked(5)
What is CVE-2019-16884?
When was CVE-2019-16884 disclosed?
Is CVE-2019-16884 actively exploited?
What is the CVSS score of CVE-2019-16884?
How do I remediate CVE-2019-16884?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-16884
Is Your Infrastructure Affected by CVE-2019-16884?
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