`CVE-2019-5736`

Affected software	9 products, listed below
Severity	8.6 High CVSS 3.1 2 scores
Weakness	OS command injection (CWE-78)
Published	11 Feb 2019
Updated	17 Jun 2026

Description

runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.

Exploitation status

Exploited

Real-world exploitation reported by VulnCheck KEV. CISA has not confirmed it.

CISA KEV not listed
VulnCheck KEV listed Exploitation reported in the wild. 2 citations · 20 exploits · earliest 2022-08-25.
CISA Vulnrichment no assessment published
Indexed PoC 20 indexed Published artifacts you can open, in Exploit-DB, GitHub PoC, Metasploit; first seen 2019-02-12.
EPSS 98% chance in 30 days A model's forecast, not a report of exploitation. Higher than 99.9% of all scored CVEs.

VulnCheck KEV

Exploitation evidence from VulnCheck Known Exploited Vulnerabilities (VulnCheck KEV), used under VulnCheck's community terms. View CVE-2019-5736 in VulnCheck (free account), which lists 15 more exploit references not shown here.

Evidence	Source	Detail	Date
Reported exploitation	cloudsek.com	/threatintelligence/timeline-ttps-of-teamtnt-cybercrime-group	2022-08-25
Reported exploitation	securelist.com	/container-attack-vectors/120010	2026-06-01
Exploit reference	VulnCheck XDB f12a3e511ead	Exploit type: local	2019-02-12
Exploit reference	VulnCheck XDB 855a012ee5b4	Exploit type: local	2019-02-13
Exploit reference	VulnCheck XDB 7e394433246d	Exploit type: local	2019-02-14
Exploit reference	VulnCheck XDB c05359a63da0	Exploit type: local	2019-02-14
Exploit reference	VulnCheck XDB 3346cb06a37f	Exploit type: local	2019-02-15

Evidence

Source

Detail

Date

Reported exploitation

cloudsek.com

/threatintelligence/timeline-ttps-of-teamtnt-cybercrime-group

2022-08-25

Reported exploitation

securelist.com

/container-attack-vectors/120010

2026-06-01

Exploit reference

VulnCheck XDB f12a3e511ead

Exploit type: local

2019-02-12

Exploit reference

VulnCheck XDB 855a012ee5b4

Exploit type: local

2019-02-13

Exploit reference

VulnCheck XDB 7e394433246d

Exploit type: local

2019-02-14

Exploit reference

VulnCheck XDB c05359a63da0

Exploit type: local

2019-02-14

Exploit reference

VulnCheck XDB 3346cb06a37f

Exploit type: local

2019-02-15

2 of these are GitHub repositories with fewer than 5 stars. They are listed for reference and don't count toward the exploitation status above.

Index	Artifact	Stars	First seen
GitHub PoC	PoC for CVE-2019-5736	659	2019-02-13
Exploit-DB	runc < 1.0-rc6 (Docker < 18.09.2) - Container Breakout (2)		2019-02-13
Metasploit	Docker Container Escape Via runC Overwrite (manual rank)
GitHub PoC	Unweaponized Proof of Concept for CVE-2019-5736 (Docker escape)	211	2019-02-12
Exploit-DB	runc < 1.0-rc6 (Docker < 18.09.2) - Container Breakout (1)		2019-02-12
GitHub PoC	CVE-2019-5736 POCs	86	2019-02-20
GitHub PoC	runc容器逃逸漏洞预警	14	2019-02-14
GitHub PoC	getshell test	7	2019-02-15
GitHub PoC	Code sample for using exploit CVE-2019-5736 to mine bitcoin with no association to original container or user.	3	2019-12-12
GitHub PoC	CVE-2019-5736 implemented in a self-written container runtime to understand the exploit.	1	2020-02-04

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

Protection none
Action not pursued none
Review human Researcher
Record active

Decided by	Manual classification of this CVE in the legacy dataset
Finding	A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

Decided by

Manual classification of this CVE in the legacy dataset

Finding

A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

8.6 HIGH v3.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

Version Score Band Vector Assigner Type

CVSS 3.1 8.6 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H NVD Primary published

CVSS 2.0 9.3 none AV:N/AC:M/Au:N/C:C/I:C/A:C NVD Primary

Version	Score	Band	Vector	Assigner	Type
CVSS 3.1	8.6	HIGH	`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`	NVD	Primary	published
CVSS 2.0	9.3	none	`AV:N/AC:M/Au:N/C:C/I:C/A:C`	NVD	Primary

Affected software and releases

Products and versions

19 products, 43 version entries

Source	Vendor	Product	Scheme	Affected versions
nvd	apache	mesos	generic	≥ 1.4.0 and ＜ 1.4.3 · ≥ 1.5.0 and ＜ 1.5.3 · ≥ 1.6.0 and ＜ 1.6.2 · ≥ 1.7.0 and ＜ 1.7.2
nvd	canonical	ubuntu linux	generic	16.04 · 18.04 · 18.10 · 19.04
nvd	d2iq	dc\/os	generic	＜ 1.10.10 · ≥ 1.10.11 and ＜ 1.11.9 · ≥ 1.11.10 and ＜ 1.12.1
nvd	d2iq	kubernetes engine	generic	＜ 2.2.0.1.13.3
nvd	docker	docker	generic	＜ 18.9.2
nvd	fedoraproject	fedora	generic	29 · 30
nvd	google	kubernetes engine	generic	any version
nvd	hp	onesphere	generic	any version
nvd	linuxcontainers	lxc	generic	＜ 3.2.0
nvd	linuxfoundation	runc	generic	≤ 0.1.1 · 1.0.0:rc1 · 1.0.0:rc2 · 1.0.0:rc3 · 1.0.0:rc4 · 1.0.0:rc5 · 1.0.0:rc6
nvd	microfocus	service management automation	generic	2018.02 · 2018.05 · 2018.08 · 2018.11
nvd	netapp	hci management node	generic	any version
nvd	netapp	solidfire	generic	any version
nvd	opensuse	backports sle	generic	15.0 · 15.0:sp1
nvd	opensuse	leap	generic	15.0 · 15.1 · 42.3
nvd	redhat	container development kit	generic	3.7
nvd	redhat	enterprise linux	generic	8.0
nvd	redhat	enterprise linux server	generic	7.0
nvd	redhat	openshift	generic	3.4 · 3.5 · 3.6 · 3.7

Source

Vendor

Product

Scheme

Affected versions

nvd

apache

mesos

generic

≥ 1.4.0 and ＜ 1.4.3 · ≥ 1.5.0 and ＜ 1.5.3 · ≥ 1.6.0 and ＜ 1.6.2 · ≥ 1.7.0 and ＜ 1.7.2

nvd

canonical

ubuntu linux

generic

16.04 · 18.04 · 18.10 · 19.04

nvd

d2iq

dc\/os

generic

＜ 1.10.10 · ≥ 1.10.11 and ＜ 1.11.9 · ≥ 1.11.10 and ＜ 1.12.1

nvd

d2iq

kubernetes engine

generic

＜ 2.2.0.1.13.3

nvd

docker

generic

＜ 18.9.2

nvd

fedoraproject

fedora

generic

29 · 30

nvd

google

kubernetes engine

generic

any version

nvd

onesphere

generic

any version

nvd

linuxcontainers

lxc

generic

＜ 3.2.0

nvd

linuxfoundation

runc

generic

≤ 0.1.1 · 1.0.0:rc1 · 1.0.0:rc2 · 1.0.0:rc3 · 1.0.0:rc4 · 1.0.0:rc5 · 1.0.0:rc6

nvd

microfocus

service management automation

generic

2018.02 · 2018.05 · 2018.08 · 2018.11

nvd

netapp

hci management node

generic

any version

nvd

netapp

solidfire

generic

any version

nvd

opensuse

backports sle

generic

15.0 · 15.0:sp1

nvd

opensuse

leap

generic

15.0 · 15.1 · 42.3

nvd

redhat

container development kit

generic

3.7

nvd

redhat

enterprise linux

generic

8.0

nvd

redhat

enterprise linux server

generic

7.0

nvd

redhat

openshift

generic

3.4 · 3.5 · 3.6 · 3.7

References

URL	Tags
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00044.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00074.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00091.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00060.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00011.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00015.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00084.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00007.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00029.html	Mailing List, Third Party Advisory

URL

Timeline

Published	2019-02-11	By the CVE Program.
VulnCheck KEV: earliest evidence	2022-08-25	Date of the oldest evidence of exploitation in VulnCheck KEV's record. VulnCheck does not publish the date it listed the CVE.
VulnCheck KEV: latest evidence	2026-06-01	Date of the newest report, exploit reference or honeypot sighting in VulnCheck KEV's record.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.

Published

2019-02-11

By the CVE Program.

VulnCheck KEV: earliest evidence

2022-08-25

Date of the oldest evidence of exploitation in VulnCheck KEV's record. VulnCheck does not publish the date it listed the CVE.

VulnCheck KEV: latest evidence

2026-06-01

Date of the newest report, exploit reference or honeypot sighting in VulnCheck KEV's record.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

How VRT decided (5 of 24 rules ran)

5 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification decided it matched Outside Waratek scope Found in legacy manual classifications

6 non-java-upstream not reached A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component not reached The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side not reached Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven not reached An OSV.dev record of this CVE affecting a package published to Maven Central. When every such package is one business applications do not use (Minecraft mods and launchers, Fastjson) and no tracked product is named by CPE, it settles the CVE as Outside Waratek scope instead

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint not reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

18 open-source-maven not reached The affected package being open source on Maven, so the fix can be read

19 poc-derivable not reached An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit not reached Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match not reached A vulnerability class already blocked by an ARMR security rule

22 exploited-no-fix-or-poc not reached Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold not reached Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published not reached Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

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