Denial of Service Vulnerability in Open5GS NRF Component
CVE-2026-8744

5.3MEDIUM

Key Information:

Vendor

Open5GS

Status
Open5gs
Vendor
CVE Published:
17 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8744?

A denial of service vulnerability has been identified in the Open5GS NRF component, specifically in the function ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add located in /lib/sbi/context.c. This vulnerability allows attackers to manipulate the function, potentially leading to a denial of service. The attack can be executed remotely, which poses a significant risk if left unaddressed. A patch has been released to remedy this issue, and it is crucial for users to apply it to safeguard their systems.

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-2026-8744 - Proof of Concept

References

https://vuldb.com/vuln/364331
vdb-entrytechnical-description
https://vuldb.com/vuln/364331/cti
signaturepermissions-required
https://vuldb.com/submit/817029
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

ZiyuLin (VulDB User)
.