CVE-2026-8288
Open5GS SMF gsm-handler.c denial of service
- State
- Published
- Severity
- 5.3 Medium
- Published
- May 11, 2026
- Updated
- May 11, 2026
- Reserved
- May 11, 2026
Description
A vulnerability was determined in Open5GS up to 2.7.7. This affects the function gsm_handle_pdu_session_modification_qos_flow_descriptions of the file src/smf/gsm-handler.c of the component SMF. Executing a manipulation of the argument n1SmMsg can lead to denial of service. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C | VulDB |
| 3.0 | 4.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C | VulDB |
| 2.0 | 4.0 Medium | AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:C | VulDB |
Weaknesses
- CWE-404 Denial of Service
Affected Products
| Product | Versions |
|---|---|
Open5GSn/a |
|
References
- VDB-362585 | Open5GS SMF gsm-handler.c denial of servicevdb-entrytechnical-description
- VDB-362585 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #808489 | Open5gs SMF v2.7.7 Denial of Servicethird-party-advisory
- https://github.com/open5gs/open5gs/issues/4452exploitissue-tracking
- https://github.com/open5gs/open5gs/pull/4513issue-trackingpatch
- https://github.com/open5gs/open5gs/product
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