Denial of Service Vulnerability in Open5GS AMF Component
CVE-2026-7706

5.3MEDIUM

Key Information:

Vendor

Open5GS

Status
Open5gs
Vendor
CVE Published:
3 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7706?

A vulnerability exists within the Open5GS AMF component, specifically in the gmm_handle_service_request function located in the gmm-handler.c file. This issue can result in a denial of service, potentially allowing malicious actors to disrupt service availability remotely. Public disclosure of this exploit has taken place, and a report regarding the issue was submitted to the project maintainers, yet no response has been documented. Users of Open5GS versions up to 2.7.7 should take immediate action to mitigate the risks associated with this vulnerability.

Affected Version(s)

Open5GS 2.7.0

Open5GS 2.7.1

Open5GS 2.7.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-7706 - Proof of Concept

References

https://vuldb.com/vuln/360882
vdb-entrytechnical-description
https://vuldb.com/vuln/360882/cti
signaturepermissions-required
https://vuldb.com/submit/805698
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

FrankyLin (VulDB User)
VulDB CNA Team
.