CVE-2019-16884
CVSS v3
7.5
HIGH
EPSS Score
4.4 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2019-09-25
Frequently asked questions
What is CVE-2019-16884?
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.
Is CVE-2019-16884 actively exploited?
Active exploitation of CVE-2019-16884 has not been confirmed. Its EPSS score was 4.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-16884?
CVE-2019-16884 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2019-16884 affecting your environment?
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