CVE-2026-1586
Open5GS SGWC s11-handler.c ogs_gtp2_f_teid_to_ip denial of service
- State
- Published
- Severity
- 6.9 Medium
- Published
- Jan 29, 2026
- Updated
- Feb 23, 2026
- Reserved
- Jan 29, 2026
Description
A flaw has been found in Open5GS up to 2.7.5. Impacted is the function ogs_gtp2_f_teid_to_ip of the file /sgwc/s11-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack may be performed from remote. The exploit has been published and may be used. It is advisable to implement a patch to correct this issue. The issue report is flagged as already-fixed.
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:O/RC:C | 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:O/RC:C | VulDB |
| 2.0 | 5.0 Medium | AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
- CWE-404 Denial of Service
Affected Products
| Product | Versions |
|---|---|
Open5GSn/a |
|
References
- VDB-343349 | Open5GS SGWC s11-handler.c ogs_gtp2_f_teid_to_ip denial of servicevdb-entrytechnical-description
- VDB-343349 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #738375 | Open5GS SGWC v2.7.6 Denial of Servicethird-party-advisory
- https://github.com/open5gs/open5gs/issues/4273issue-tracking
- https://github.com/open5gs/open5gs/issues/4273#event-21968643659issue-tracking
- https://github.com/open5gs/open5gs/issues/4273#issue-3796030721exploitissue-tracking
- https://github.com/open5gs/open5gs/product
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