CVE-2026-8249
Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service
- State
- Published
- Severity
- 5.3 Medium
- Published
- May 10, 2026
- Updated
- May 11, 2026
- Reserved
- May 10, 2026
Description
A flaw has been found in Open5GS up to 2.7.7. The impacted element is the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. This manipulation causes denial of service. Remote exploitation of the attack is possible. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
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-362546 | Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of servicevdb-entrytechnical-description
- VDB-362546 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #808473 | Open5gs SMF v2.7.7 Denial of Servicethird-party-advisory
- https://github.com/open5gs/open5gs/issues/4443exploitissue-tracking
- https://github.com/open5gs/open5gs/product
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