CVE-2026-8289: Denial of Service in Open5GS
CVE-2026-8289 is a medium severity denial of service vulnerability in Open5GS versions up to 2.7.7. It affects the SMF component, specifically the function smf_nsmf_handle_update_data_in_vsmf, where manipulation of the qosFlowProfile argument can cause a denial of service. Remote exploitation is possible, and a public exploit exists. The Open5GS project has been informed but has not yet responded or provided a fix.
AI Analysis
Technical Summary
This vulnerability in Open5GS (up to version 2.7.7) involves the SMF component's function smf_nsmf_handle_update_data_in_vsmf. An attacker can remotely manipulate the qosFlowProfile argument to trigger a denial of service condition. The vulnerability has a CVSS 4.0 base score of 5.3, indicating medium severity. Although an exploit is publicly available, no official patch or remediation has been released by the vendor as of the published date.
Potential Impact
Successful exploitation results in denial of service of the affected Open5GS SMF component, potentially disrupting service availability. There is no indication of privilege escalation, data confidentiality, or integrity impact. Remote attackers with low privileges can trigger the issue without user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, monitor official Open5GS channels for updates. Until a patch is available, consider limiting exposure of the affected SMF service to untrusted networks to reduce risk.
CVE-2026-8289: Denial of Service in Open5GS
Description
CVE-2026-8289 is a medium severity denial of service vulnerability in Open5GS versions up to 2.7.7. It affects the SMF component, specifically the function smf_nsmf_handle_update_data_in_vsmf, where manipulation of the qosFlowProfile argument can cause a denial of service. Remote exploitation is possible, and a public exploit exists. The Open5GS project has been informed but has not yet responded or provided a fix.
CVSS v4.0
Score 5.3medium
Affected software
pkg:github/open5gs/open5gsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Open5GS (up to version 2.7.7) involves the SMF component's function smf_nsmf_handle_update_data_in_vsmf. An attacker can remotely manipulate the qosFlowProfile argument to trigger a denial of service condition. The vulnerability has a CVSS 4.0 base score of 5.3, indicating medium severity. Although an exploit is publicly available, no official patch or remediation has been released by the vendor as of the published date.
Potential Impact
Successful exploitation results in denial of service of the affected Open5GS SMF component, potentially disrupting service availability. There is no indication of privilege escalation, data confidentiality, or integrity impact. Remote attackers with low privileges can trigger the issue without user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, monitor official Open5GS channels for updates. Until a patch is available, consider limiting exposure of the affected SMF service to untrusted networks to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-11T08:02:12.966Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a01db59cbff5d86101a01d2
Added to database: 05/11/2026, 13:36:25 UTC
Last enriched: 05/19/2026, 11:01:40 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 94
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