CVE-2026-2517
Open5GS SMF types.c ogs_gtp2_parse_tft denial of service
- State
- Published
- Severity
- 6.9 Medium
- Published
- Feb 15, 2026
- Updated
- Feb 23, 2026
- Reserved
- Feb 14, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 5.3 Medium | 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 | VulDB |
| 3.0 | 5.3 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 5.0 Medium | AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-404 Denial of Service
Affected Products
| Product | Versions |
|---|---|
Open5GSn/a |
|
References
- VDB-346108 | Open5GS SMF types.c ogs_gtp2_parse_tft denial of servicevdb-entrytechnical-description
- VDB-346108 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #738332 | Open5GS SMF v2.7.6 Denial of Servicethird-party-advisory
- https://github.com/open5gs/open5gs/issues/4281issue-tracking
- https://github.com/open5gs/open5gs/issues/4281#issue-3807802287exploitissue-tracking
- https://github.com/open5gs/open5gs/product
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