What is the CVSS score of CVE-2025-66720?

CVE-2025-66720 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of Golang are affected by CVE-2025-66720?

A critical vulnerability in free5gc PCF (Policy Control Function) version 1.4.0 could allow attackers to crash the policy management service, disrupting mobile network operations and potentially…. A patch is available.

Is there a public PoC exploit available for CVE-2025-66720?

Yes, a public proof-of-concept exploit is available for CVE-2025-66720. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-66720?

Within 24 hours: Inventory all systems running free5gc PCF 1.4.0 and assess exposure; implement network segmentation to restrict access to the PCF component if not already in place. Within 7 days: Apply vendor patch to all affected instances during maintenance windows, beginning with non-production environments. Within 30 days: Complete patching of all production systems and validate through functional testing of policy control workflows.

Golang CVE-2025-66720

HIGH

NULL Pointer Dereference (CWE-476)

2026-01-23 cve@mitre.org

Null Pointer Dereference Golang Pcf

7.5

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Feb 11, 2026 - 19:56 vuln.today

Public exploit code

Patch released

Feb 11, 2026 - 19:56 nvd

Patch available

CVE Published

Jan 23, 2026 - 16:15 nvd

HIGH 7.5

DescriptionNVD

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

AnalysisAI

Null pointer dereference in free5gc pcf 1.4.0 in file internal/sbi/processor/ampolicy.go in function HandleDeletePoliciesPolAssoId. [CVSS 7.5 HIGH]

Technical ContextAI

Classified as CWE-476 (NULL Pointer Dereference). Affects Pcf. Null pointer dereference in free5gc pcf 1.4.0 in file internal/sbi/processor/ampolicy.go in function HandleDeletePoliciesPolAssoId.

RemediationAI

A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.

CVE-2025-66720 vulnerability details – vuln.today

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Golang CVE-2025-66720

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code