CVE-2019-19396

Name: CVE-2019-19396
Creator: NVD / NIST
Published: 2019-11-29T22:15:12.047+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.12%

Last modified Jun 17, 2026

CVE-2019-19396 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. illumos, as used in OmniOS Community Edition before r151030y, allows a kernel crash via an application with multiple threads calling sendmsg concurrently over a single socket, because uts/common/inet/ip/ip_attr.c mishandles conn_ixa dereferences.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

illumos, as used in OmniOS Community Edition before r151030y, allows a kernel crash via an application with multiple threads calling sendmsg concurrently over a single socket, because uts/common/inet/ip/ip_attr.c mishandles conn_ixa dereferences.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.12%

62.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Omniosce	Omnios	< r151030

References

https://omniosce.org/article/030y-028ay-022dw.htmlVendor Advisory
https://www.illumos.org/issues/11556Third Party Advisory
https://omniosce.org/article/030y-028ay-022dw.htmlVendor Advisory
https://www.illumos.org/issues/11556Third Party Advisory

Timeline

Published: Nov 29, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-19396?

How severe is CVE-2019-19396?

CVE-2019-19396 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.

How do I fix CVE-2019-19396?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-19396?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST