CVE-2021-44081

Name: CVE-2021-44081
Creator: NVD / NIST
Published: 2022-03-29T16:15:07.75+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.03%

Last modified Jun 17, 2026

CVE-2021-44081 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A buffer overflow vulnerability exists in the AMF of open5gs 2.1.4. When the length of MSIN in Supi exceeds 24 characters, it leads to AMF denial of service.. EPSS estimates a 1.03% chance of exploitation in the next 30 days.

Description

A buffer overflow vulnerability exists in the AMF of open5gs 2.1.4. When the length of MSIN in Supi exceeds 24 characters, it leads to AMF denial of service.

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

1.03%

59.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Open5gs	Open5gs	2.1.4

References

https://github.com/open5gs/open5gs/issues/1206Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/open5gs/open5gs/issues/1206Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Mar 29, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44081?

A buffer overflow vulnerability exists in the AMF of open5gs 2.1.4. When the length of MSIN in Supi exceeds 24 characters, it leads to AMF denial of service.

How severe is CVE-2021-44081?

CVE-2021-44081 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44081?

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-2021-44081?

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

Scan your code now

Source: NVD / NIST