CVE-2025-56394
Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile...
Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow.
- Record
CVE-2025-56394- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2025-30911
Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow.
- Record
EUVD-2025-30911- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-w9f3-92w7-x777
Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile...
Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow.
- Record
GHSA-w9f3-92w7-x777- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
NVD
Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow.
- Record
CVE-2025-56394- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-06
OSV
Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow.
- Record
CVE-2025-56394- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-07
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | NVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-56394 is a high vulnerability (CVSS 7.5) in Free5gc, published September 23, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.42%, the 36th percentile. No source names a fixed version.