CVE-2019-16410

Name: CVE-2019-16410
Creator: NVD / NIST
Published: 2019-09-24T20:15:11.87+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 2.05%

Last modified Jun 17, 2026

CVE-2019-16410 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. An issue was discovered in Suricata 4.1.4. By sending multiple fragmented IPv4 packets, the function Defrag4Reassemble in defrag.c tries to access a memory region that is not allocated, because of a lack of header_len checking.. EPSS estimates a 2.05% chance of exploitation in the next 30 days.

Description

An issue was discovered in Suricata 4.1.4. By sending multiple fragmented IPv4 packets, the function Defrag4Reassemble in defrag.c tries to access a memory region that is not allocated, because of a lack of header_len checking.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

2.05%

78.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Suricata-Ids	Suricata	4.1.4

References

https://lists.openinfosecfoundation.org/pipermail/oisf-announce/Third Party Advisory
https://suricata-ids.org/2019/09/24/suricata-4-1-5-released/Release Notes, Vendor Advisory
https://www.code-intelligence.com/cve-2019-16410
https://lists.openinfosecfoundation.org/pipermail/oisf-announce/Third Party Advisory
https://suricata-ids.org/2019/09/24/suricata-4-1-5-released/Release Notes, Vendor Advisory
https://www.code-intelligence.com/cve-2019-16410

Timeline

Published: Sep 24, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-16410?

How severe is CVE-2019-16410?

CVE-2019-16410 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 2.05% probability of exploitation in the next 30 days.

How do I fix CVE-2019-16410?

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-2019-16410?

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

Scan your code now

Source: NVD / NIST