CVE-2026-2517: OPEN5GS

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

A security flaw has been discovered in Open5GS up to 2.7.6. This vulnerability affects the function ogs_gtp2_parse_tft in the library lib/gtp/v2/types.c of the component SMF. Performing a manipulation of the argument pf[0].content.length results in denial of service. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

• OPEN5GS OPEN5GS: up to and including 2.7.6

Published 2026-02-15. Last modified 2026-06-17.