Buffer overflow in Open5gs
CVE-2026-15194
A security flaw has been discovered in Open5GS 2.7.7. This affects the function amf_context_final of the file src/amf/context.c of the component AMF. Performing a manipulation results in use after free. The attack is only possible with local access. The exploit has been released to the public and may be used for attacks.
Vulnerability class: Buffer Overflow
EPSS: 0.001 (2.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- N/a Open5gs — versions 2.7.7
Weakness classification (CWE)
References
- cna@vuldb.com (product)
- cna@vuldb.com (exploit)
- CVE-2026-15194 | CVE Analysis and Report (third-party-advisory)
- Submit #851630 | Open5GS Project Open5GS 2.7.7 Use After Free (third-party-advisory)
- VDB-377122 | Open5GS AMF context.c amf_context_final use after free (technical-description, vdb-entry)
- VDB-377122 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-15194?
- CVE-2026-15194 is a low-severity vulnerability in Open5gs, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-07-09.
- How severe is CVE-2026-15194?
- Low severity. CVSS v3 base score is 3.3 out of 10.