Is CVE-2026-30072 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-30072 being exploited in the wild.

How severe is CVE-2026-30072?

High severity, with a CVSS score of 7.5, published 27 August 2026.

Which products and versions are affected?

free5GC CHF (Charging Handling Function) v4.0.1.

Is there a fix for CVE-2026-30072?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-30072 attacked?

It is attacked over the network.

Am I affected by CVE-2026-30072?

Check whether you run free5GC CHF (Charging Handling Function) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-30072: free5gc CHF NULL pointer dereference in CDR processing

CVE-2026-30072 · Severity: high · CVSS 7.5 · Published 2026-08-27

free5gc is an open-source implementation of a 5G core network. The Charging Handling Function (CHF) component processes billing data from other network functions. A NULL pointer dereference vulnerability in the CDR (Charge Detail Record) processing path allows an attacker to crash the CHF service by sending a malformed charging request, disrupting billing operations and network service availability.

Vendors: free5GC.

Quick answers

Is CVE-2026-30072 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-30072 being exploited in the wild.
How severe is CVE-2026-30072?: High severity, with a CVSS score of 7.5, published 27 August 2026.
Which products and versions are affected?: free5GC CHF (Charging Handling Function) v4.0.1.
Is there a fix for CVE-2026-30072?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-30072 attacked?: It is attacked over the network.
Am I affected by CVE-2026-30072?: Check whether you run free5GC CHF (Charging Handling Function) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a NULL pointer dereference in the OpenCDR function within internal/sbi/processor/cdr.go of free5gc v4.0.1. The code assumes the nested field pDUSessionChargingInformation.pduSessionInformation is non-nil and directly accesses PduSessionInformation.PduSessionID without prior validation. When a client omits the pduSessionInformation field in a POST request to /nchf-convergedcharging/v3/chargingdata, the code dereferences a nil pointer, causing a runtime panic. The vulnerability is network-reachable and requires no authentication; an attacker can trigger it by sending a crafted JSON payload via HTTP POST. The impact is Denial of Service—the CHF process crashes and returns HTTP 500 or drops the connection, halting billing functions.

Affected products

free5gc CHF (Charging Handling Function) v4.0.1

Timeline

2026-01-01: disclosed: Issue reported on GitHub
2026-08-27: advisory: CVE-2026-30072 published

References

https://github.com/free5gc/free5gc/issues/759

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