What is CVE-2019-19047?

CVE-2019-19047 is a medium-severity vulnerability in Linux Kernel, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2019-11-18.

How severe is CVE-2019-19047?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux Kernel

CVE-2019-19047

A memory leak in the mlx5_fw_fatal_reporter_dump() function in drivers/net/ethernet/mellanox/mlx5/core/health.c in the Linux kernel before 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering mlx5_crdump_collect() failures, aka CID-c7ed6d0183d5.

Published 2019-11-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (42.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Linux Kernel
Canonical Ubuntu Linux — versions 18.04, 19.10

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11 (Release Notes, Vendor Advisory)
github.com/torvalds/linux/commit/c7ed6d0183d5ea9bc31bcaeeba4070bd62546471 (Patch, Third Party Advisory)
security.netapp.com/advisory/ntap-20191205-0001/ (Third Party Advisory)
usn.ubuntu.com/4225-1/ (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2019-19047?: CVE-2019-19047 is a medium-severity vulnerability in Linux Kernel, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2019-11-18.
How severe is CVE-2019-19047?: Medium severity. CVSS v3 base score is 5.5 out of 10.