Vulnerability · Published Feb 15, 2026 · Assigned by VulDB
CVE-2026-2517Open5GS SMF types.c ogs_gtp2_parse_tft denial of service
Medium 5.3
In plain English
A medium-severity security flaw in Open5GS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).
Official description
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 (as reported)
Weakness: CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
References
- VDB-346108 | Open5GS SMF types.c ogs_gtp2_parse_tft denial of service vdb-entry, technical-description
- VDB-346108 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #738332 | Open5GS SMF v2.7.6 Denial of Service third-party-advisory
- https://github.com/open5gs/open5gs/issues/4281 issue-tracking
- https://github.com/open5gs/open5gs/issues/4281#issue-3807802287 exploit, issue-tracking
- https://github.com/open5gs/open5gs/ product