CVE-2026-7779: Denial of Service in Open5GS
CVE-2026-7779 is a medium severity vulnerability in Open5GS versions up to 2.7.7. It affects the function udm_nudr_dr_handle_subscription_authentication in the authentication-subscription endpoint, allowing remote denial of service via crafted input manipulation. The vulnerability has been publicly disclosed with an exploit available, but the Open5GS project has not yet responded or issued a patch. No official remediation or fix is currently documented.
AI Analysis
Technical Summary
This vulnerability in Open5GS up to version 2.7.7 involves the udm_nudr_dr_handle_subscription_authentication function within the authentication-subscription endpoint component. An attacker can remotely manipulate inputs to cause a denial of service condition. The CVSS 4.0 base score is 5.3 (medium), reflecting network attack vector, low attack complexity, no privileges required, and no user interaction needed. The vulnerability was responsibly disclosed but remains unpatched as of the publication date.
Potential Impact
Successful exploitation results in denial of service, potentially disrupting authentication subscription services in Open5GS deployments. This could lead to service unavailability affecting network operations relying on Open5GS. There is no indication of privilege escalation, data disclosure, or code execution from the available data.
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. In the meantime, consider implementing network-level protections to limit exposure of the affected endpoint to untrusted sources.
CVE-2026-7779: Denial of Service in Open5GS
Description
CVE-2026-7779 is a medium severity vulnerability in Open5GS versions up to 2.7.7. It affects the function udm_nudr_dr_handle_subscription_authentication in the authentication-subscription endpoint, allowing remote denial of service via crafted input manipulation. The vulnerability has been publicly disclosed with an exploit available, but the Open5GS project has not yet responded or issued a patch. No official remediation or fix is currently documented.
CVSS v4.0
Score 5.3medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Open5GS up to version 2.7.7 involves the udm_nudr_dr_handle_subscription_authentication function within the authentication-subscription endpoint component. An attacker can remotely manipulate inputs to cause a denial of service condition. The CVSS 4.0 base score is 5.3 (medium), reflecting network attack vector, low attack complexity, no privileges required, and no user interaction needed. The vulnerability was responsibly disclosed but remains unpatched as of the publication date.
Potential Impact
Successful exploitation results in denial of service, potentially disrupting authentication subscription services in Open5GS deployments. This could lead to service unavailability affecting network operations relying on Open5GS. There is no indication of privilege escalation, data disclosure, or code execution from the available data.
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. In the meantime, consider implementing network-level protections to limit exposure of the affected endpoint to untrusted sources.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-04T15:50:14.414Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f90a5bcbff5d86104a42a9
Added to database: 5/4/2026, 9:06:35 PM
Last enriched: 5/12/2026, 6:29:00 AM
Last updated: 6/18/2026, 2:38:45 PM
Views: 84
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