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CVE-2025-5520

5.3 · MEDIUM

A vulnerability was found in Open5GS up to 2.7.3.

Published Jun 3, 2025CWE-617EPSS 0.85%

Overview

CVE-2025-5520 is a medium-severity vulnerability. It was published on June 3, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/open5gs/open5gs/commit/9f5d133657850e6167231527514ee1364d37a884GitHubgithub.com/open5gs/open5gs/issues/3910GitHubgithub.com/open5gs/open5gs/issues/3910#issuecomment-2926719317GitHubgithub.com/user-attachments/files/20362243/Problematic.handover.required.process.zipRefvuldb.com/?ctiid.310956Refvuldb.com/?id.310956Refvuldb.com/?submit.582269GitHubgithub.com/open5gs/open5gs/issues/3910

How CyberStrike helps

Frequently asked questions

What is CVE-2025-5520?

CVE-2025-5520 is a medium-severity vulnerability. It was published on June 3, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-5520?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-5520?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-5520?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-5520 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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