Medium severity · published Aug 25, 2025
CVE-2025-9405
Open5GS gmm-sm.c gmm_state_exception assertion
5.3
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Open5GS ·
2.7.0; 2.7.1; 2.7.2; 2.7.3; 2.7.4; 2.7.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-9405
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-9405
Third Party Advisory
https://github.com/ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-9405
Patch
https://github.com/open5gs/open5gs/commit/8e5fed16114f2f5e40bee1b161914b592b2b7b8f
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
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