CVE-2025-5520

Public Exploit
Open5GS AMF/MME emm_state_authentication assertion

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.

Category

6.9
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.09%
Third-Party Advisory vuldb.com Third-Party Advisory vuldb.com
Affected: n/a Open5GS
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-5520?
CVE-2025-5520 has been scored as a medium severity vulnerability.
How to fix CVE-2025-5520?
To fix CVE-2025-5520, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-5520 being actively exploited in the wild?
It is possible that CVE-2025-5520 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-5520?
CVE-2025-5520 affects n/a Open5GS.
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