Vulnerability Description
An issue in UPF in Open5GS UPF versions up to v2.7.2 results an assertion failure vulnerability in PFCP session parameter validation. When processing a PFCP Session Establishment Request with PDN Type=0, the UPF fails to handle the invalid value propagated from SMF (or via direct attack), triggering a fatal assertion check and causing a daemon crash.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Open5Gs | Open5Gs | <= 2.7.2 |
Related Weaknesses (CWE)
References
- https://github.com/open5gs/open5gs/issues/3727ExploitIssue TrackingVendor Advisory
FAQ
What is CVE-2025-29339?
CVE-2025-29339 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue in UPF in Open5GS UPF versions up to v2.7.2 results an assertion failure vulnerability in PFCP session parameter validation. When processing a PFCP Session Establishment Request with PDN Type...
How severe is CVE-2025-29339?
CVE-2025-29339 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-29339?
Check the references section above for vendor advisories and patch information. Affected products include: Open5Gs Open5Gs.