CVE-2026-8222: Denial of Service in Open5GS
CVE-2026-8222 is a medium severity denial of service vulnerability in Open5GS versions up to 2. 7. 7. It affects the function pcf_nbsf_management_handle_register in the sm-policies Endpoint component. The vulnerability can be exploited remotely without authentication or user interaction. Although the issue was reported early, the Open5GS project has not yet responded or provided a fix. The exploit details have been publicly disclosed, but no known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
This vulnerability in Open5GS (up to version 2.7.7) involves the pcf_nbsf_management_handle_register function within the sm-policies Endpoint component (file src/pcf/nbsf-handler.c). An attacker can remotely manipulate this function to cause a denial of service condition. The vulnerability requires no privileges or user interaction and has a CVSS 4.0 base score of 6.9, indicating a medium severity level. The Open5GS project has been informed but has not yet issued any remediation or patch.
Potential Impact
Successful exploitation leads to denial of service, potentially disrupting the availability of the Open5GS service. There is no indication of privilege escalation, data confidentiality, or integrity impact. The vulnerability can be triggered remotely without authentication, increasing the risk of service disruption.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the Open5GS project has not responded or released a fix, users should monitor official channels for updates. Until a patch is available, consider implementing network-level protections such as filtering or rate limiting access to the affected component to reduce exposure.
CVE-2026-8222: Denial of Service in Open5GS
Description
CVE-2026-8222 is a medium severity denial of service vulnerability in Open5GS versions up to 2. 7. 7. It affects the function pcf_nbsf_management_handle_register in the sm-policies Endpoint component. The vulnerability can be exploited remotely without authentication or user interaction. Although the issue was reported early, the Open5GS project has not yet responded or provided a fix. The exploit details have been publicly disclosed, but no known exploits are reported in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Open5GS (up to version 2.7.7) involves the pcf_nbsf_management_handle_register function within the sm-policies Endpoint component (file src/pcf/nbsf-handler.c). An attacker can remotely manipulate this function to cause a denial of service condition. The vulnerability requires no privileges or user interaction and has a CVSS 4.0 base score of 6.9, indicating a medium severity level. The Open5GS project has been informed but has not yet issued any remediation or patch.
Potential Impact
Successful exploitation leads to denial of service, potentially disrupting the availability of the Open5GS service. There is no indication of privilege escalation, data confidentiality, or integrity impact. The vulnerability can be triggered remotely without authentication, increasing the risk of service disruption.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the Open5GS project has not responded or released a fix, users should monitor official channels for updates. Until a patch is available, consider implementing network-level protections such as filtering or rate limiting access to the affected component to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-09T07:35:13.650Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fff9d3cbff5d8610089c7a
Added to database: 5/10/2026, 3:21:55 AM
Last enriched: 5/10/2026, 3:36:24 AM
Last updated: 5/10/2026, 5:48:04 AM
Views: 7
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