What is CVE-2025-65559?

CVE-2025-65559 is a high-severity vulnerability in Open5gs, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2025-12-18.

How severe is CVE-2025-65559?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Open5gs

CVE-2025-65559

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.

EPSS: 0.004 (30.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Open5gs — versions 2.7.5
N/a — versions n/a

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

cve@mitre.org (Exploit, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2025-65559?: CVE-2025-65559 is a high-severity vulnerability in Open5gs, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2025-12-18.
How severe is CVE-2025-65559?: High severity. CVSS v3 base score is 7.5 out of 10.