Denial of Service Vulnerability in Free5GC SMF by Free5GC
CVE-2026-1684

6.9MEDIUM

Key Information:

Vendor

Free5gc

Status
Smf
Vendor
CVE Published:
30 January 2026

What is CVE-2026-1684?

A security issue has been identified in Free5GC SMF versions up to 4.1.0, specifically in the HandleReports function within the PFCP UDP Endpoint component. This vulnerability allows a remote attacker to exploit the system, leading to a denial of service situation. Users of affected versions are highly encouraged to implement available patches to mitigate the risk.

Affected Version(s)

SMF 4.0

SMF 4.1.0

References

https://vuldb.com/?id.343477
vdb-entrytechnical-description
https://vuldb.com/?ctiid.343477
signaturepermissions-required
https://vuldb.com/?submit.739655
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

ZiyuLin (VulDB User)
.