CVE-2019-10155

Name: CVE-2019-10155
Creator: NVD / NIST
Published: 2019-06-12T14:29:02.917+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.1/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2019-10155 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. The Libreswan Project has found a vulnerability in the processing of IKEv1 informational exchange packets which are encrypted and integrity protected using the established IKE SA encryption and integrity keys, but as a receiver, the integrity check value was not verified. This issue affects versions before 3.29.. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

The Libreswan Project has found a vulnerability in the processing of IKEv1 informational exchange packets which are encrypted and integrity protected using the established IKE SA encryption and integrity keys, but as a receiver, the integrity check value was not verified. This issue affects versions before 3.29.

Metrics

CVSS 3.1

3.1/10

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

EPSS Probability

0.51%

39.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Libreswan	Libreswan	< 3.29
Strongswan	Strongswan	< 5.0.0
Xelerance	Openswan	All versions
Fedoraproject	Fedora	29
Fedoraproject	Fedora	30
Redhat	Enterprise Linux	8.0

References

https://access.redhat.com/errata/RHSA-2019:3391Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10155Issue Tracking, Patch, Third Party Advisory
https://libreswan.org/security/CVE-2019-10155/Patch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUEXFCN7FAYBKJBQJLYCEUQUCHDEJRZW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFGPGLLKAXSLWFI62A6BZHTZSCHRCBXS/
https://access.redhat.com/errata/RHSA-2019:3391Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10155Issue Tracking, Patch, Third Party Advisory
https://libreswan.org/security/CVE-2019-10155/Patch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUEXFCN7FAYBKJBQJLYCEUQUCHDEJRZW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFGPGLLKAXSLWFI62A6BZHTZSCHRCBXS/

Timeline

Published: Jun 12, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-10155?

How severe is CVE-2019-10155?

CVE-2019-10155 has a CVSS score of 3.1/10 (LOW severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2019-10155?

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-2019-10155?

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

Scan your code now

Source: NVD / NIST