HIGH

CVE-2019-5611

CVSS v3

7.5

HIGH

EPSS Score

4.4 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2019-5611 yet.

Full record on NVD

Description

In FreeBSD 12.0-STABLE before r350828, 12.0-RELEASE before 12.0-RELEASE-p10, 11.3-STABLE before r350829, 11.3-RELEASE before 11.3-RELEASE-p3, and 11.2-RELEASE before 11.2-RELEASE-p14, a missing check in the function to arrange data in a chain of mbufs could cause data returned not to be contiguous. Extra checks in the IPv6 stack could catch the error condition and trigger a kernel panic, leading to a remote denial of service.

Technical details

Published: 2019-08-30

Frequently asked questions

What is CVE-2019-5611?

Is CVE-2019-5611 actively exploited?

Active exploitation of CVE-2019-5611 has not been confirmed. Its EPSS score was 4.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-5611?

CVE-2019-5611 has a CVSS v3 base score of 7.5 (HIGH severity).

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