CVE-2026-1683
Free5GC SMF PFCP handler.go HandlePfcpSessionReportRequest denial of service
- State
- Published
- Severity
- 6.9 Medium
- Published
- Jan 30, 2026
- Updated
- Feb 23, 2026
- Reserved
- Jan 30, 2026
Description
A vulnerability has been found in Free5GC SMF up to 4.1.0. Affected by this vulnerability is the function HandlePfcpSessionReportRequest of the file internal/pfcp/handler/handler.go of the component PFCP. The manipulation leads to denial of service. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used. To fix this issue, it is recommended to deploy a patch.
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 |
|---|---|
SMFFree5GC |
|
References
- VDB-343476 | Free5GC SMF PFCP handler.go HandlePfcpSessionReportRequest denial of servicevdb-entrytechnical-description
- VDB-343476 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #739653 | free5gc SMF v4.1.0 Denial of Servicethird-party-advisory
- Submit #739654 | free5gc SMF v4.1.0 Denial of Service (Duplicate)third-party-advisory
- https://github.com/free5gc/free5gc/issues/804issue-tracking
- https://github.com/free5gc/free5gc/issues/804#issue-3816086696exploitissue-tracking
- https://github.com/free5gc/smf/pull/188issue-trackingpatch
- https://github.com/free5gc/smf/product
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