CVE-2025-52288

Assertion failure in function ngap_build_downlink_nas_transport in file src/amf/ngap-build.c, the Access and Mobility Management Function (AMF) component, in Open5GS thru 2.7.5 allowing attackers to cause a denial of service or other unspecified impacts via repeated UE connect and disconnect message sequences.

CVSS v3.1 CNA

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.48% chance of exploitation in the next 30 days, 40th percentile

Published

2025-09-08

Proof-of-concept exploits (1)

• open5gs/open5gs/issues/38622770★ · 2026-10-15

Security advisories

• ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-52288
• matejGradisar/open5gs/commit/5467da9763c300520f56bfbe0a7f5a7f980ec2f6

References

• CVE Record
• NVD entry