Denial of Service Vulnerability in Open5GS by Open5GS
CVE-2025-15687

5.3MEDIUM

Key Information:

Vendor

Open5GS

Status
Open5gs
Vendor
CVE Published:
12 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15687?

A security flaw in Open5GS affects the smf_gx_cca_cb function of the SMF Diameter Gx Credit-Control-Answer Handler, allowing for a denial of service condition. This vulnerability can be exploited remotely, potentially disrupting services that rely on Open5GS. Users are urged to upgrade to version 2.7.7, where a patch has been implemented to resolve this issue.

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-2025-15687 - Proof of Concept

References

https://vuldb.com/vuln/387283
vdb-entrytechnical-description
https://vuldb.com/vuln/387283/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2025-15687
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

WeiYi (VulDB User)
.