CVE-2022-23094

Name: CVE-2022-23094
Creator: NVD / NIST
Published: 2022-01-15T02:15:06.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.70%

Last modified Jun 17, 2026

CVE-2022-23094 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Libreswan 4.2 through 4.5 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted IKEv1 packet because pluto/ikev1.c wrongly expects that a state object exists. This is fixed in 4.6.. EPSS estimates a 2.70% chance of exploitation in the next 30 days.

Description

Libreswan 4.2 through 4.5 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted IKEv1 packet because pluto/ikev1.c wrongly expects that a state object exists. This is fixed in 4.6.

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

2.70%

84.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Libreswan	Libreswan	>= 4.2, < 4.6
Fedoraproject	Fedora	34
Fedoraproject	Fedora	35
Debian	Debian Linux	10.0

References

https://github.com/libreswan/libreswan/issues/585Exploit, Issue Tracking, Third Party Advisory
https://libreswan.org/security/CVE-2022-23094Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HPMIHAXWQUJAPCIGNJ5J5Q6ASWQBU7T5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UFZ7WP5LNNBW5ADIOPDSPQ23SXZJRNMP/
https://www.debian.org/security/2022/dsa-5048Third Party Advisory
https://github.com/libreswan/libreswan/issues/585Exploit, Issue Tracking, Third Party Advisory
https://libreswan.org/security/CVE-2022-23094Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HPMIHAXWQUJAPCIGNJ5J5Q6ASWQBU7T5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UFZ7WP5LNNBW5ADIOPDSPQ23SXZJRNMP/
https://www.debian.org/security/2022/dsa-5048Third Party Advisory

Timeline

Published: Jan 15, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-23094?

How severe is CVE-2022-23094?

CVE-2022-23094 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.70% probability of exploitation in the next 30 days.

How do I fix CVE-2022-23094?

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-2022-23094?

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

Scan your code now

Source: NVD / NIST