Cyber Resilience

CVE-2025-29632

MediumPublic PoC

Published: 29 May 2025

Published
29 May 2025
Modified
25 June 2025
KEV Added
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Patch
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CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS Score 0.0024 47.8th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-29632 is a medium-severity Classic Buffer Overflow (CWE-120) vulnerability in Free5Gc Free5Gc. Its CVSS base score is 5.4 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 47.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Buffer Overflow vulnerability in Free5gc v.4.0.0 allows a remote attacker to cause a denial of service via the AMF, NGAP, security.go, handler_generated.go, handleInitialUEMessageMain, DecodePlainNasNoIntegrityCheck, GetSecurityHeaderType components

CWE(s)
CWE-120

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

Buffer overflow in Free5GC AMF allows remote DoS crash via crafted NGAP InitialUEMessage with empty nASPDU, enabling endpoint denial of service through application exploitation.

Affected Assets

free5gc
free5gc
4.0.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References