TI-2025-40397 Aliases CVE-2025-65567 GHSA-w3v7-wwmg-2j8p

A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in…

HIGH 72CWE-125Published 2025-12-18 · Updated 2025-12-19

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in version upf-epc-pfcpiface:2.1.3-dev. After PFCP association, a specially crafted PFCP Session Establishment Request with a CreatePDR that contains a malformed Flow-Description is not robustly validated. The Flow-Description parser (parseFlowDesc) can read beyond the bounds of the provided buffer, causing a panic and terminating the UPF process. An attacker who can send PFCP Session Establishment Request messages to the UPF's N4/PFCP endpoint can exploit this issue to repeatedly crash the UPF.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00412 35th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:opennetworking:upf:2.1.3:dev::::::	2.1.3 dev	Vulnerable	Open Networking Foundation (ONF)

cpe:2.3:a:opennetworking:upf:2.1.3:dev:*:*:*:*:*:* Versions 2.1.3 dev Vulnerable ·Open Networking Foundation (ONF)

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-65567
2026-10-03 Alias added: GHSA-w3v7-wwmg-2j8p

References

Exploit 1

https://github.com/omec-project/upf/issues/959

TI-2025-40398 A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in… CVSS 3.1HIGH 7.5
TI-2025-40395 A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in… CVSS 3.1HIGH 7.5
TI-2025-40394 A denial-of-service vulnerability exists in the omec-upf (upf-epc-pfcpiface) in version… CVSS 3.1HIGH 7.5
TI-2025-40393 A denial-of-service vulnerability exists in the omec-project UPF (component… CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences