What is CVE-2025-66720?

CVE-2025-66720 is a high-severity vulnerability in Free5gc Pcf, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-01-23.

How severe is CVE-2025-66720?

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

NULL pointer dereference in Free5gc Pcf

CVE-2025-66720

Null pointer dereference in free5gc pcf 1.4.0 in file internal/sbi/processor/ampolicy.go in function HandleDeletePoliciesPolAssoId.

Published 2026-01-23 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.005 (38.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000

Affected products

Free5gc Pcf — versions 1.4.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/free5gc/free5gc/issues/726 (Exploit, Issue Tracking)
github.com/free5gc/pcf/pull/57 (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2025-66720?: CVE-2025-66720 is a high-severity vulnerability in Free5gc Pcf, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-01-23.
How severe is CVE-2025-66720?: High severity. CVSS v3 base score is 7.5 out of 10.