CVE-2022-38871

Name: CVE-2022-38871
Creator: NVD / NIST
Published: 2022-11-18T23:15:20.117+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.73%

Last modified Jun 17, 2026

CVE-2022-38871 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In Free5gc v3.0.5, the AMF breaks due to malformed NAS messages.. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

In Free5gc v3.0.5, the AMF breaks due to malformed NAS messages.

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

0.73%

49.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Free5gc	Free5gc	3.0.5

References

https://github.com/free5gc/free5gc/issues/198Exploit, Issue Tracking, Third Party Advisory
https://github.com/free5gc/free5gc/issues/198Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Nov 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-38871?

In Free5gc v3.0.5, the AMF breaks due to malformed NAS messages.

How severe is CVE-2022-38871?

CVE-2022-38871 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.

How do I fix CVE-2022-38871?

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-2022-38871?

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

Scan your code now

Source: NVD / NIST