CVE-2026-7706: Denial of Service in Open5GS
CVE-2026-7706 is a medium-severity vulnerability in Open5GS versions up to 2.7.7 affecting the AMF component. Specifically, the vulnerability exists in the gmm_handle_service_request function in the /src/amf/gmm-handler.c file. This flaw allows a remote attacker to cause a denial of service condition. The vulnerability has been publicly disclosed, but no official patch or remediation guidance has been provided by the vendor as of the publication date.
AI Analysis
Technical Summary
This vulnerability in Open5GS up to version 2.7.7 involves the gmm_handle_service_request function within the AMF component. An attacker can remotely manipulate this function to trigger a denial of service, disrupting service availability. The issue was reported early to the project but remains unaddressed, and no official fix or patch has been released. The CVSS 4.0 base score is 5.3, indicating a medium severity with network attack vector, low attack complexity, no privileges required, and no user interaction needed.
Potential Impact
Successful exploitation results in denial of service, impacting the availability of the Open5GS AMF component. This could disrupt mobile core network functions relying on Open5GS. There is no indication of data confidentiality or integrity impact. The vulnerability can be triggered remotely without authentication.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is available and the vendor has not responded, users should monitor vendor channels for updates. In the meantime, consider implementing network-level protections to limit exposure of the AMF service to untrusted sources.
CVE-2026-7706: Denial of Service in Open5GS
Description
CVE-2026-7706 is a medium-severity vulnerability in Open5GS versions up to 2.7.7 affecting the AMF component. Specifically, the vulnerability exists in the gmm_handle_service_request function in the /src/amf/gmm-handler.c file. This flaw allows a remote attacker to cause a denial of service condition. The vulnerability has been publicly disclosed, but no official patch or remediation guidance has been provided by the vendor as of the publication date.
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 gmm_handle_service_request function within the AMF component. An attacker can remotely manipulate this function to trigger a denial of service, disrupting service availability. The issue was reported early to the project but remains unaddressed, and no official fix or patch has been released. The CVSS 4.0 base score is 5.3, indicating a medium severity with network attack vector, low attack complexity, no privileges required, and no user interaction needed.
Potential Impact
Successful exploitation results in denial of service, impacting the availability of the Open5GS AMF component. This could disrupt mobile core network functions relying on Open5GS. There is no indication of data confidentiality or integrity impact. The vulnerability can be triggered remotely without authentication.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is available and the vendor has not responded, users should monitor vendor channels for updates. In the meantime, consider implementing network-level protections to limit exposure of the AMF service to untrusted sources.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-03T07:21:48.076Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f7ca83cbff5d86106ce7b5
Added to database: 5/3/2026, 10:21:55 PM
Last enriched: 5/11/2026, 2:16:01 AM
Last updated: 6/18/2026, 2:36:00 AM
Views: 78
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.