CVE-2025-9405

Name: CVE-2025-9405
Creator: NVD / NIST
Published: 2025-08-25T04:15:43.853+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.58%

Last modified Jun 17, 2026

CVE-2025-9405 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.58% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS 4.0

5.5/10

CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.58%

43.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-617

Affected Software

Vendor	Product	Versions
Open5gs	Open5gs	< 2.7.6

References

https://github.com/ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-9405Third Party Advisory
https://github.com/open5gs/open5gs/commit/8e5fed16114f2f5e40bee1b161914b592b2b7b8fPatch
https://github.com/open5gs/open5gs/issues/3947Exploit, Issue Tracking
https://github.com/open5gs/open5gs/issues/3947#issuecomment-3029992728Issue Tracking
https://github.com/user-attachments/files/21013084/amf_udm-uecm.zipProduct
https://vuldb.com/?ctiid.321241Permissions Required, VDB Entry
https://vuldb.com/?id.321241Third Party Advisory, VDB Entry
https://vuldb.com/?submit.633467Third Party Advisory, VDB Entry
https://github.com/open5gs/open5gs/issues/3947Exploit, Issue Tracking
https://github.com/open5gs/open5gs/issues/3947#issuecomment-3029992728Issue Tracking
https://vuldb.com/?submit.633467Third Party Advisory, VDB Entry

Timeline

Published: Aug 25, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-9405?

How severe is CVE-2025-9405?

CVE-2025-9405 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.

How do I fix CVE-2025-9405?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-9405?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST