Description
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.
Affected products
open5gs: open5gs
References5
- github.com/matejGradisar/open5gs/commit/5467da9763c300520f56bfb… Patch
- github.com/open5gs/open5gs/issues/3862 ExploitIssue Tracking
- github.com/open5gs/open5gs/issues/3862#issue-3006335547 ExploitIssue Tracking
- github.com/ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-52288 Third Party Advisory
- github.com/open5gs/open5gs/issues/3862#issuecomment-2853458783 Issue Tracking
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 43 · as of 8 November 2026
- CWE
- CWE-400
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