Vulnerability · Published Jul 4, 2026 · Assigned by VulDB
CVE-2026-14618Open5GS AMF nnrf-handler.c amf_nnrf_handle_nf_discover denial of service
Medium 4.3
In plain English
A medium-severity security flaw in Open5GS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Official description
A vulnerability was detected in Open5GS up to 2.7.7. Affected by this vulnerability is the function amf_nnrf_handle_nf_discover of the file src/amf/nnrf-handler.c of the component AMF. The manipulation results in denial of service. The attack may be launched remotely. The exploit is now public and may be used. The patch is identified as fb5f67703de0213fb9c6e6ef3b48b6c1707e9503. It is best practice to apply a patch to resolve this issue.
Affected products (as reported)
Weakness: CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
References
- VDB-376135 | Open5GS AMF nnrf-handler.c amf_nnrf_handle_nf_discover denial of service vdb-entry, technical-description
- VDB-376135 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-14618 | CVE Analysis and Report third-party-advisory
- Submit #844824 | Open5GS 2.7.7 Denial of Service third-party-advisory
- https://github.com/open5gs/open5gs/issues/4517 exploit, issue-tracking
- https://github.com/open5gs/open5gs/issues/4517#issuecomment-4589606265 issue-tracking
- https://github.com/ferrancanellas/open5gs/commit/fb5f67703de0213fb9c6e6ef3b48b6c1707e9503 broken-link, patch
- https://github.com/open5gs/open5gs/ product