CVE-2025-15686
Open5GS HSS Service fd_msg_sess_get denial of service
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 12, 2026
- Updated
- Aug 12, 2026
- Reserved
- Aug 9, 2026
Description
A vulnerability has been found in Open5GS up to 2.7.6. Affected by this issue is the function fd_msg_sess_get of the component HSS Service. Such manipulation of the argument Session-Id leads to denial of service. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The project locked and limited conversation to collaborators.
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:R | 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:R | VulDB |
| 2.0 | 4.0 Medium | AV:N/AC:L/Au:S/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-387279 | Open5GS HSS Service fd_msg_sess_get denial of servicevdb-entrytechnical-description
- VDB-387279 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2025-15686 | CVE Analysis and Reportthird-party-advisory
- Submit #867104 | Open5GS v2.7.6 Denial of Servicethird-party-advisory
- https://github.com/open5gs/open5gs/issues/4190issue-tracking
- https://github.com/user-attachments/files/23847497/HSS_ULR_error_poc.pcapng.zipexploit
- https://github.com/open5gs/open5gs/product
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