CVE-2026-1736
Open5GS SGWC s11-handler.c assertion
- State
- Published
- Severity
- 6.9 Medium
- Published
- Feb 2, 2026
- Updated
- Feb 23, 2026
- Reserved
- Feb 1, 2026
Description
A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is the function sgwc_s11_handle_create_indirect_data_forwarding_tunnel_request of the file /src/sgwc/s11-handler.c of the component SGWC. Such manipulation leads to reachable assertion. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. A patch should be applied to remediate 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-617 Reachable Assertion
Affected Products
| Product | Versions |
|---|---|
Open5GSn/a |
|
References
- VDB-343635 | Open5GS SGWC s11-handler.c assertionvdb-entrytechnical-description
- VDB-343635 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #741191 | Open5GS SGWC v2.7.6 Denial of Servicethird-party-advisory
- https://github.com/open5gs/open5gs/issues/4270issue-tracking
- https://github.com/open5gs/open5gs/issues/4270#event-21968624624issue-tracking
- https://github.com/open5gs/open5gs/issues/4270#issue-3795141303exploitissue-tracking
- https://github.com/open5gs/open5gs/product
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.