No exploitation reportedFix available

CVE-2019-15916

Q: Is CVE-2019-15916 actively exploited?

Active exploitation of CVE-2019-15916 has not been confirmed. Its EPSS score was 3.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-15916?

CVE-2019-15916 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2019-09-04
Fixed in5.0.1 · 4.20.15 · 4.19.28 · 4.14.106 · 4.9.163 · 4.4.177
WeaknessCWE-401

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in the Linux kernel before 5.0.1. There is a memory leak in register_queue_kobjects() in net/core/net-sysfs.c, which will cause denial of service.

Timeline

dates in UTC

2019-09-0415:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-15916?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-15916?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Linux linux kernel

Branch	Affected	Fixed in	Source
5.0	≥ 5.0, < 5.0.1	5.0.1	NVD
4.20	≥ 4.20, < 4.20.15	4.20.15	NVD
4.x	≥ 4.15, < 4.19.28	4.19.28	NVD
4.x	≥ 4.10, < 4.14.106	4.14.106	NVD
4.x	≥ 4.5, < 4.9.163	4.9.163	NVD
4.4	≥ 3.19, < 4.4.177	4.4.177	NVD
3.x	≥ 3.17, < 3.18.137	3.18.137	NVD
3.16	≥ 2.6.38, < 3.16.70	3.16.70	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Linux linux kernel to 5.0.1 · 4.20.15 · 4.19.28 · 4.14.106 · 4.9.163 · 4.4.177 · 3.18.137 · 3.16.70

Advisories and patches

cdn.kernel.orgRelease Notes · Vendor Advisory
git.kernel.orgPatch · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.07.8read 2026-10-23
NVDweakness (CWE)CWE-401read 2026-10-23
FIRST EPSSEPSS score3.9 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2019-09-04
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-15916?

An issue was discovered in the Linux kernel before 5.0.1. There is a memory leak in register_queue_kobjects() in net/core/net-sysfs.c, which will cause denial of service.

Is CVE-2019-15916 actively exploited?

Active exploitation of CVE-2019-15916 has not been confirmed. Its EPSS score was 3.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-15916?

CVE-2019-15916 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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