Buffer overflow in Free5gc

CVE-2025-29632

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

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (26.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-29632: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-29632?
CVE-2025-29632 is a medium-severity vulnerability in Free5gc, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.4/10. Published 2025-05-29.
How severe is CVE-2025-29632?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2025-29632 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.