Description
A security flaw has been discovered in Open5GS up to 2.7.6. The impacted element is the function gmm_state_security_mode of the file src/amf/gmm-sm.c of the component NGAP Handover. Performing a manipulation results in race condition. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitability is regarded as difficult. The exploit has been released to the public and may be used for attacks. The pull request to fix this issue awaits acceptance.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Open5GS | 2.7.0, 2.7.1, 2.7.2, 2.7.3, 2.7.4, 2.7.5, 2.7.6 | — |
References
- VDB-367672 | Open5GS NGAP Handover gmm-sm.c gmm_state_security_mode race condition vdb-entry technical-description
- VDB-367672 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-10565 | CVE Analysis and Report third-party-advisory
- Submit #818938 | open5gs v2.7.6 Race Condition third-party-advisory
- https://github.com/open5gs/open5gs/issues/4497 issue-tracking
- https://github.com/open5gs/open5gs/pull/4501 issue-tracking patch
- https://github.com/user-attachments/files/27111025/N2-SMC-Concurrent.zip exploit
- https://github.com/open5gs/open5gs/ product