CVE-2026-8223: Denial of Service in Open5GS
CVE-2026-8223 is a medium severity denial of service vulnerability in Open5GS versions up to 2. 7. 7. It affects the pcf_sess_sbi_discover_and_send function within the sm-policies endpoint. The vulnerability can be exploited remotely without authentication or user interaction. Although an exploit has been publicly disclosed, there is no official patch or remediation available yet, and the project has not responded to the issue report.
AI Analysis
Technical Summary
This vulnerability in Open5GS (up to version 2.7.7) involves the pcf_sess_sbi_discover_and_send function of the sm-policies endpoint. Remote attackers can manipulate this function to cause a denial of service condition. The CVSS 4.0 base score is 6.9, reflecting medium severity with network attack vector, no privileges required, and no user interaction needed. The vulnerability was responsibly disclosed but remains unpatched as of the latest information.
Potential Impact
Successful exploitation results in denial of service, potentially disrupting the affected Open5GS service. There is no indication of data compromise or privilege escalation. The vulnerability can be triggered remotely without authentication, increasing the risk of service disruption in affected deployments.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary workaround is currently available and the vendor has not responded, users should monitor official Open5GS channels for updates. Until a patch is released, consider implementing network-level protections such as filtering or rate limiting access to the sm-policies endpoint to reduce exposure.
CVE-2026-8223: Denial of Service in Open5GS
Description
CVE-2026-8223 is a medium severity denial of service vulnerability in Open5GS versions up to 2. 7. 7. It affects the pcf_sess_sbi_discover_and_send function within the sm-policies endpoint. The vulnerability can be exploited remotely without authentication or user interaction. Although an exploit has been publicly disclosed, there is no official patch or remediation available yet, and the project has not responded to the issue report.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Open5GS (up to version 2.7.7) involves the pcf_sess_sbi_discover_and_send function of the sm-policies endpoint. Remote attackers can manipulate this function to cause a denial of service condition. The CVSS 4.0 base score is 6.9, reflecting medium severity with network attack vector, no privileges required, and no user interaction needed. The vulnerability was responsibly disclosed but remains unpatched as of the latest information.
Potential Impact
Successful exploitation results in denial of service, potentially disrupting the affected Open5GS service. There is no indication of data compromise or privilege escalation. The vulnerability can be triggered remotely without authentication, increasing the risk of service disruption in affected deployments.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary workaround is currently available and the vendor has not responded, users should monitor official Open5GS channels for updates. Until a patch is released, consider implementing network-level protections such as filtering or rate limiting access to the sm-policies endpoint to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-09T07:35:21.709Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fff9d3cbff5d8610089c81
Added to database: 5/10/2026, 3:21:55 AM
Last enriched: 5/10/2026, 3:36:21 AM
Last updated: 5/10/2026, 5:48:16 AM
Views: 6
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