CVE-2025-9405

low-risk
Published 2025-08-25

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.

Do I need to act?

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0.11% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Open5Gs

References (11)

Third Party Advisory https://github.com/ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-9405
Patch https://github.com/open5gs/open5gs/commit/8e5fed16114f2f5e40bee1b161914b592b2b7b...
Exploit https://github.com/open5gs/open5gs/issues/3947
Issue Tracking https://github.com/open5gs/open5gs/issues/3947#issuecomment-3029992728
Product https://github.com/user-attachments/files/21013084/amf_udm-uecm.zip
Permissions Required https://vuldb.com/?ctiid.321241
Third Party Advisory https://vuldb.com/?id.321241
Third Party Advisory https://vuldb.com/?submit.633467
Exploit https://github.com/open5gs/open5gs/issues/3947
Issue Tracking https://github.com/open5gs/open5gs/issues/3947#issuecomment-3029992728
Third Party Advisory https://vuldb.com/?submit.633467
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal