Improper Authorization Vulnerability in Open5GS by Open5GS
CVE-2026-86212

5.3MEDIUM

Key Information:

Vendor

Open5GS

Status
Open5gs
Vendor
CVE Published:
6 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-86212?

A vulnerability has been identified in Open5GS versions 2.7.7 and 2.8.0 that affects the AMF/MME component. This weakness allows for improper authorization, which can be exploited remotely by attackers. As a result, unauthorized actions may be executed, posing significant risks to application integrity and functionality. It is crucial to address this issue promptly by applying the recommended patch (commit ID: 9468de94caed2fc940f4a23cbf734651896d0fde) to enhance the security of the affected systems.

Affected Version(s)

Open5GS 2.7.7

Open5GS 2.8.0

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-2026-86212 - Proof of Concept

References

https://vuldb.com/vuln/399348
vdb-entry
https://vuldb.com/vuln/399348/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-86212
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

dwxll (VulDB User)
.