Vulnerability Description
A vulnerability was found in Open5GS up to 2.7.3. It has been classified as problematic. Affected is the function gmm_state_authentication/emm_state_authentication of the component AMF/MME. The manipulation leads to reachable assertion. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 9f5d133657850e6167231527514ee1364d37a884. It is recommended to apply a patch to fix this issue. This is a different issue than CVE-2025-1893.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Open5Gs | Open5Gs | >= 2.7.0, <= 2.7.3 |
Related Weaknesses (CWE)
References
- https://github.com/open5gs/open5gs/commit/9f5d133657850e6167231527514ee1364d37a8Patch
- https://github.com/open5gs/open5gs/issues/3910ExploitIssue Tracking
- https://github.com/open5gs/open5gs/issues/3910#issuecomment-2926719317ExploitIssue Tracking
- https://github.com/user-attachments/files/20362243/Problematic.handover.requiredExploit
- https://vuldb.com/?ctiid.310956Permissions RequiredVDB Entry
- https://vuldb.com/?id.310956Third Party AdvisoryVDB Entry
- https://vuldb.com/?submit.582269Third Party AdvisoryVDB Entry
- https://github.com/open5gs/open5gs/issues/3910ExploitIssue Tracking
FAQ
What is CVE-2025-5520?
CVE-2025-5520 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability was found in Open5GS up to 2.7.3. It has been classified as problematic. Affected is the function gmm_state_authentication/emm_state_authentication of the component AMF/MME. The manipu...
How severe is CVE-2025-5520?
CVE-2025-5520 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-5520?
Check the references section above for vendor advisories and patch information. Affected products include: Open5Gs Open5Gs.