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Free5gc CVE-2025-56394

HIGH
Heap-based Buffer Overflow (CWE-122)
2025-09-23 cve@mitre.org
Buffer Overflow Heap Overflow Free5gc
7.5
CVSS 3.1
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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

3
Analysis Generated
Mar 28, 2026 - 19:13 vuln.today
PoC Detected
Oct 08, 2025 - 17:56 vuln.today
Public exploit code
CVE Published
Sep 23, 2025 - 18:15 nvd
HIGH 7.5

DescriptionNVD

Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow.

AnalysisAI

Free5gc 4.0.1 is vulnerable to Buffer Overflow. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-122. Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow. Affected products include: Free5Gc.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2025-56394 vulnerability details – vuln.today
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