How severe is CVE-2025-65567?

CVE-2025-65567 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-65567 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-65567?

CVE-2025-65567 affects Opennetworking Upf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-65567?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-65567 have an EU (EUVD) identifier?

Yes. CVE-2025-65567 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204332.

When was CVE-2025-65567 published?

CVE-2025-65567 was published on 2025-12-18 and last updated on 2026-06-17.

CVE-2025-65567

CVE-2025-65567 is a high-severity vulnerability in Opennetworking Upf with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-204332
Weakness: CWE-125
Affected product: Opennetworking Upf
Published: 2025-12-18
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2025-65567?: 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.
How severe is CVE-2025-65567?: CVE-2025-65567 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-65567 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-65567?: CVE-2025-65567 affects Opennetworking Upf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-65567?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-65567 have an EU (EUVD) identifier?: Yes. CVE-2025-65567 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204332.
When was CVE-2025-65567 published?: CVE-2025-65567 was published on 2025-12-18 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:opennetworking:upf:2.1.3:dev:*:*:*:*:*:*

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