Denial of Service Vulnerability in Open5GS by Open5GS
CVE-2026-8267

5.3MEDIUM

Key Information:

Vendor

Open5GS

Status
Open5gs
Vendor
CVE Published:
11 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8267?

A vulnerability has been identified in Open5GS versions up to 2.7.7, specifically in the SMF component's function smf_nsmf_handle_created_data_in_vsmf. This flaw allows attackers to initiate remote denial of service attacks, disrupting the service's functionality. Despite being reported, there has been no responsive action from the project maintainers. Users are advised to monitor this situation closely and update their software as fixes become available.

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-2026-8267 - Proof of Concept

References

https://vuldb.com/vuln/362564
vdb-entrytechnical-description
https://vuldb.com/vuln/362564/cti
signaturepermissions-required
https://vuldb.com/submit/808484
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

FrankLin (VulDB User)
VulDB CNA Team
.