How severe is CVE-2025-65564?

CVE-2025-65564 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-2025-65564 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-65564?

CVE-2025-65564 affects Opennetworking Upf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-65564?

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-2025-65564 have an EU (EUVD) identifier?

Yes. CVE-2025-65564 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204377.

When was CVE-2025-65564 published?

CVE-2025-65564 was published on 2025-12-18 and last updated on 2026-06-17.

CVE-2025-65564

CVE-2025-65564 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-204377
Weakness: CWE-476
Affected product: Opennetworking Upf
Published: 2025-12-18
Last modified: 2026-06-17

Description

A denial-of-service vulnerability exists in the omec-upf (upf-epc-pfcpiface) in version upf-epc-pfcpiface:2.1.3-dev. When the UPF receives a PFCP Association Setup Request that is missing the mandatory Recovery Time Stamp Information Element, the association setup handler dereferences a nil pointer via IE.RecoveryTimeStamp() instead of validating the message. This results in a panic and terminates the UPF process. An attacker who can send PFCP Association Setup Request messages to the UPF's N4/PFCP endpoint can exploit this issue to repeatedly crash the UPF and disrupt user-plane services.

Frequently asked questions

What is CVE-2025-65564?: A denial-of-service vulnerability exists in the omec-upf (upf-epc-pfcpiface) in version upf-epc-pfcpiface:2.1.3-dev. When the UPF receives a PFCP Association Setup Request that is missing the mandatory Recovery Time Stamp Information Element, the association setup handler dereferences a nil pointer via IE.RecoveryTimeStamp() instead of validating the message. This results in a panic and terminates the UPF process. An attacker who can send PFCP Association Setup Request messages to the UPF's N4/PFCP endpoint can exploit this issue to repeatedly crash the UPF and disrupt user-plane services.
How severe is CVE-2025-65564?: CVE-2025-65564 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-2025-65564 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-65564?: CVE-2025-65564 affects Opennetworking Upf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-65564?: 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-2025-65564 have an EU (EUVD) identifier?: Yes. CVE-2025-65564 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204377.
When was CVE-2025-65564 published?: CVE-2025-65564 was published on 2025-12-18 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Opennetworking Upf

CVE-2025-65568 — High (CVSS 7.5): A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in version…
CVE-2025-65567 — High (CVSS 7.5): A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in version…
CVE-2025-65565 — High (CVSS 7.5): A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in version…
CVE-2025-65563 — High (CVSS 7.5): A denial-of-service vulnerability exists in the omec-project UPF (component upf-epc/pfcpiface) up to at least version…

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