CVE-2025-56394 json
Free5gc 4.0.1 is vulnerable to Buffer Overflow.
published 2025-09-23 13 mo ago modified 2026-11-05 3 d ago also EUVD-2025-30911
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 13 mo ago
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/free5gc/free5gc/issues/690 referenced PoC, tagged "exploit" by a source, unverified
- gist.github.com https://gist.github.com/DDGod2025/532691e3e2db9b47c67c3d153c026e62 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Classification
- Weakness
-
- CWE-122 Heap-based Buffer Overflow
References
-
github.com
/free5gc/free5gc/issues/690
exploit, issue-tracking, patch
-
gist.github.com
/DDGod2025/532691e3e2db9b47c67c3d153c026e62
exploit, third-party-advisory
Sources
- CVE List CVE-2025-56394
- NVD CVE-2025-56394
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