Denial of Service Vulnerability in Open5GS by Open5GS Project
CVE-2026-7780

5.3MEDIUM

Key Information:

Vendor

Open5GS Project

Status
Open5gs
Vendor
CVE Published:
4 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7780?

A vulnerability exists in Open5GS in the smf-registrations Endpoint, specifically in the udm_state_operational function. This weakness can cause a denial of service, allowing an attacker to remotely execute a manipulation that disrupts the service. Publicly available exploit techniques increase the risk of attacks. Despite early notification of the issue, the Open5GS project has not issued a response.

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-2026-7780 - Proof of Concept

References

https://vuldb.com/vuln/360977
vdb-entrytechnical-description
https://vuldb.com/vuln/360977/cti
signaturepermissions-required
https://vuldb.com/submit/806250
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
.