CVE-2026-2525 Free5GC PFCP UDP Endpoint denial of service

A vulnerability has been found in Free5GC up to 4.1.0. This affects an unknown function of the component PFCP UDP Endpoint. Such manipulation leads to denial of service. The attack can be launched remotely. The exploit has been disclosed to the public and may be used...

CVE-2026-2525

A vulnerability has been found in Free5GC up to 4.1.0. This affects an unknown function of the component PFCP UDP Endpoint. Such manipulation leads to denial of service. The attack can be launched remotely. The exploit has been disclosed to the public and may be used...

CVE-2025-70123

An improper input validation and protocol compliance vulnerability in free5GC v4.0.1 allows remote attackers to cause a denial of service. The UPF incorrectly accepts a malformed PFCP Association Setup Request, violating 3GPP TS 29.244. This places the UPF in an inconsistent state where a...

PT-2026-8007

Name of the Vulnerable Software and Affected Versions free5GC version 4.0.1 Description A heap buffer overflow exists in the UPF component of free5GC version 4.0.1. This flaw allows remote attackers to potentially cause a denial of service by sending a specially crafted PFCP Session Modification...

CVE-2025-70123

Summary of CVE-2025-70123 : In free5GC v4.0.1, the UPF fails to validate a malformed PFCP Association Setup Request, violating 3GPP TS 29.244. This leads to an inconsistent UPF state, and a subsequent valid PFCP Session Establishment Request can trigger a cascading failure that disrupts the SMF c...

CVE-2025-70123

An improper input validation and protocol compliance vulnerability in free5GC v4.0.1 allows remote attackers to cause a denial of service. The UPF incorrectly accepts a malformed PFCP Association Setup Request, violating 3GPP TS 29.244. This places the UPF in an inconsistent state where a...

CVE-2025-70122

CVE-2025-70122 affects free5GC v4.0.1 UPF. The root cause is a heap buffer overflow in SDFFilterFields.UnmarshalBinary (sdf-filter.go) triggered when a declared length exceeds the actual buffer capacity, causing a runtime panic and UPF crash. Documents indicate remote exploitation over the networ...

CVE-2026-1975 Free5GC pfcp_reports.go identityTriggerType null pointer dereference

A security flaw has been discovered in Free5GC up to 4.1.0. This impacts the function identityTriggerType of the file pfcpreports.go. The manipulation results in null pointer dereference. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks...

CVE-2026-1682

A flaw has been found in Free5GC SMF up to 4.1.0. Affected is the function HandlePfcpAssociationReleaseRequest of the file internal/pfcp/handler/handler.go of the component PFCP UDP Endpoint. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The...

CVE-2026-1684

A vulnerability was found in Free5GC SMF up to 4.1.0. Affected by this issue is the function HandleReports of the file /internal/context/pfcpreports.go of the component PFCP UDP Endpoint. The manipulation results in denial of service. The attack can be executed remotely. It is advisable to...

CVE-2026-1683

Free5GC SMF up to 4.1.0 is affected by a vulnerability in HandlePfcpSessionReportRequest (internal/pfcp/handler/handler.go) of the PFCP component, enabling remote denial of service. Exploitation has been publicly disclosed. Remediation is to deploy an official patch; multiple sources (NVD/Red Hat...

CVE-2026-1682

CVE-2026-1682 affects Free5GC SMF up to version 4.1.0, specifically the PFCP UDP Endpoint’s HandlePfcpAssociationReleaseRequest in internal/pfcp/handler/handler.go. The vulnerability allows remote manipulation that can cause a null pointer dereference. An exploit has been published and may be use...

free5GC security vulnerabilities

Free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of Free5GC 4.1.0 and earlier contain security vulnerabilities. These vulnerabilities stem from improper handling in the HandleReports function within the PFCP UDP Endpoint component, located in the...

PT-2026-5403

Name of the Vulnerable Software and Affected Versions Free5GC SMF versions prior to 4.1.0 Description A flaw exists within the PFCP UDP Endpoint component of Free5GC SMF. Specifically, the HandleReports function within the /internal/context/pfcp reports.go file is susceptible to manipulation,...

CVE-2026-21906

An Improper Handling of Exceptional Conditions vulnerability in the packet forwarding engine PFE of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker sending a specific ICMP packet through a GRE tunnel to cause the PFE to crash and restart. When PowerMode...

CVE-2026-21903

A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service DoS. Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting...

CVE-2026-21903

A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service DoS. Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting...

CVE-2026-21906 Junos OS: SRX Series: With GRE performance acceleration enabled, receipt of a specific ICMP packet causes the PFE to crash

An Improper Handling of Exceptional Conditions vulnerability in the packet forwarding engine PFE of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker sending a specific ICMP packet through a GRE tunnel to cause the PFE to crash and restart. When PowerMode...

CVE-2026-21903

CVE-2026-21903 is a stack-based buffer overflow in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS. A network-based attacker with low privileges can trigger a Denial-of-Service by subscribing to telemetry sensors at scale, which causes all FPC connections to drop, an FPC crash, an...

EUVD-2026-2692

A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service DoS. Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting...