Type Confusion Vulnerability in Free5GC by Linux Foundation
CVE-2026-5360

6.3MEDIUM

Key Information:

Vendor

Linux Foundation

Status
Free5gc
Vendor
CVE Published:
2 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5360?

A type confusion vulnerability has been identified in Free5GC version 4.2.0, specifically within an undisclosed function of its aper component. This vulnerability allows an attacker to exploit the software remotely, showcasing a high degree of complexity in its execution. Given the known details of the exploit, it poses a significant security risk. Users are strongly advised to apply the provided patch (commit: 26205eb01705754b7b902ad6c4b613c96c881e29) to mitigate the potential for an attack. Publicly disclosed, this vulnerability underscores the importance of regular updates and security measures.

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Affected Version(s)

Free5GC 4.2.0

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-2026-5360 - Proof of Concept

References

https://vuldb.com/vuln/354735
vdb-entry
https://vuldb.com/vuln/354735/cti
signaturepermissions-required
https://vuldb.com/submit/781573
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

shovon0203 (VulDB User)
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