CVE-2025-65559: An issue was discovered in Open5GS 2.7.5-49-g465e90f, when processing a PFCP Session Establishment Request (type=50)…
CVE-2025-65559 · Severity: high · CVSS 7.5 · Published 2025-12-18
An issue was discovered in Open5GS 2.7.5-49-g465e90f, when processing a PFCP Session Establishment Request (type=50), the UPF crashes with a reachable assertion in `lib/pfcp/context.c` (`ogs_pfcp_object_teid_hash_set`) if the CreatePDR?PDI?F-TEID has CH=1 and the F-TEID address-family flag(s) (IPv4/IPv6) do not match the GTP-U resource family configured for the selected DNN (Network Instance), resulting in a denial of service.
No. Junglewise Threat Intelligence has no report of CVE-2025-65559 being exploited in the wild.
How severe is CVE-2025-65559?
High severity, with a CVSS score of 7.5, published 18 December 2025.
Which products and versions are affected?
Open5GS. The advisory does not name versions.
Is there a fix for CVE-2025-65559?
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.
Am I affected by CVE-2025-65559?
Check whether you run Open5GS. 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.