What is CVE-2024-14043?

CVE-2024-14043 is a medium-severity vulnerability in Open5gs, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.3/10. Published 2026-08-12.

How severe is CVE-2024-14043?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Buffer overflow in Open5gs

CVE-2024-14043

A vulnerability was determined in Open5GS up to 2.7.1. This vulnerability affects the function mme_s6a_subscription_data_from_avp of the file src/mme/mme-fd-path.c of the component Diameter S6a Interface. Executing a manipulation of the argument msisdn_len can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.7.2 is able to resolve this issue. This patch is called 7ea82cb87bb65c3694d8d7c7a5efed1c4d3c9304. Upgrading the affected component is recommended.

Vulnerability class: Buffer Overflow

Published 2026-08-12 · last modified 2026-08-12.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.005 (40.5th percentile), scored 2026-09-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Open5gs — versions 2.7.0, 2.7.1, 2.7.2

Weakness classification (CWE)

References

vuldb.com/vuln/387281 (technical-description, vdb-entry)
vuldb.com/vuln/387281/cti (signature, permissions-required)
vuldb.com/cve/CVE-2024-14043 (third-party-advisory)
vuldb.com/submit/867106 (third-party-advisory)
github.com/open5gs/open5gs/issues/3156 (issue-tracking)
github.com/open5gs/open5gs/files/15051238/capture.pcap.gz (exploit)
github.com/open5gs/open5gs/commit/7ea82cb87bb65c3694d8d7c7a5efed1c4d3c9304 (patch)
github.com/open5gs/open5gs/releases/tag/v2.7.2 (patch)
github.com/open5gs/open5gs/ (product)

Frequently asked questions

What is CVE-2024-14043?: CVE-2024-14043 is a medium-severity vulnerability in Open5gs, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.3/10. Published 2026-08-12.
How severe is CVE-2024-14043?: Medium severity. CVSS v3 base score is 6.3 out of 10.