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A security flaw has been discovered in Open5GS up to 2.7.5. The impacted element is the function gmm_state_exception of the file src/amf/gmm-sm.c. The manipulation results in reachable assertion. It is possible to launch the attack remotely. The exploit has been released to the public and may be exploited. The patch is identified as 8e5fed16114f2f5e40bee1b161914b592b2b7b8f. Applying a patch is advised to resolve this issue.

Es wurde eine Schwachstelle in Open5GS bis 2.7.5 entdeckt. Dabei geht es um die Funktion gmm_state_exception der Datei src/amf/gmm-sm.c. Die Manipulation führt zu reachable assertion. Der Angriff lässt sich über das Netzwerk starten. Der Exploit wurde der Öffentlichkeit bekannt gemacht und könnte verwendet werden. Der Patch heisst 8e5fed16114f2f5e40bee1b161914b592b2b7b8f. Es wird empfohlen, einen Patch anzuwenden, um dieses Problem zu beheben.

PUBLISHED Reserved 2025-08-24 | Published 2025-08-25 | Updated 2025-08-31 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
MEDIUM: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
5.0AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C

Problem types

Reachable Assertion

Timeline

2025-08-24:Advisory disclosed
2025-08-24:VulDB entry created
2025-08-31:VulDB entry last update

Credits

ZYC010101 (VulDB User) reporter

ZYC010101 (VulDB User) analyst

References

vuldb.com/?id.321241 (VDB-321241 | Open5GS gmm-sm.c gmm_state_exception assertion) vdb-entry technical-description

vuldb.com/?ctiid.321241 (VDB-321241 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.633467 (Submit #633467 | Open5GS <= v2.7.5 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/3947 issue-tracking

github.com/open5gs/open5gs/issues/3947 issue-tracking

github.com/user-attachments/files/21013084/amf_udm-uecm.zip exploit

github.com/...ommit/8e5fed16114f2f5e40bee1b161914b592b2b7b8f patch

github.com/ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-9405 related

cve.org (CVE-2025-9405)

nvd.nist.gov (CVE-2025-9405)

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