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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/omec-project/upf/issues/959	Exploit Issue Tracking Third Party Advisory
https://github.com/omec-project/upf/issues/959	Exploit Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

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

History

13 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad de denegación de servicio existe en el UPF de omec-project (componente pfcpiface) en la versión upf-epc-pfcpiface:2.1.3-dev. Después de la asociación PFCP, una solicitud de establecimiento de sesión PFCP especialmente diseñada con un CreatePDR que contiene una descripción de flujo (Flow-Description) malformada no se valida de forma robusta. El analizador de descripción de flujo (Flow-Description parser) (parseFlowDesc) puede leer más allá de los límites del búfer proporcionado, causando un pánico y terminando el proceso UPF. Un atacante que puede enviar mensajes de solicitud de establecimiento de sesión PFCP al punto final N4/PFCP del UPF puede explotar este problema para bloquear repetidamente el UPF.

Information

Published : 2025-12-18 19:16

Updated : 2026-10-13 11:10

NVD link : CVE-2025-65567

Mitre link : CVE-2025-65567

CVE.ORG link : CVE-2025-65567

JSON object : View

Products Affected

opennetworking

upf

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2025-65567", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-65567", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-12-19T17:30:42.697726Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}]}], "published": "2025-12-18T19:16:34.190", "references": [{"url": "https://github.com/omec-project/upf/issues/959", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/omec-project/upf/issues/959", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Una vulnerabilidad de denegaci\u00f3n de servicio existe en el UPF de omec-project (componente pfcpiface) en la versi\u00f3n upf-epc-pfcpiface:2.1.3-dev. Despu\u00e9s de la asociaci\u00f3n PFCP, una solicitud de establecimiento de sesi\u00f3n PFCP especialmente dise\u00f1ada con un CreatePDR que contiene una descripci\u00f3n de flujo (Flow-Description) malformada no se valida de forma robusta. El analizador de descripci\u00f3n de flujo (Flow-Description parser) (parseFlowDesc) puede leer m\u00e1s all\u00e1 de los l\u00edmites del b\u00fafer proporcionado, causando un p\u00e1nico y terminando el proceso UPF. Un atacante que puede enviar mensajes de solicitud de establecimiento de sesi\u00f3n PFCP al punto final N4/PFCP del UPF puede explotar este problema para bloquear repetidamente el UPF."}], "lastModified": "2026-10-13T11:10:00.203", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:opennetworking:upf:2.1.3:dev:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E580395D-12BF-4D0A-AA6F-FD59C36E1EED"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}