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CVE-2025-5520

Date: June 3, 2025

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.

Severity Score

Related Resources (9)

https://vuldb.com/?submit.582269
https://nvd.nist.gov/vuln/detail/CVE-2025-5520
https://vuldb.com/?ctiid.310956
https://github.com/open5gs/open5gs/commit/9f5d133657850e6167231527514ee1364d37a884
https://github.com/open5gs/open5gs/issues/3910
https://github.com/user-attachments/files/20362243/Problematic.handover.required.process.zip
https://github.com/open5gs/open5gs/issues/3910#issuecomment-2926719317
https://vuldb.com/?id.310956
https://www.mend.io/vulnerability-database/CVE-2025-5520

Severity Score

Weakness Type (CWE)

Reachable Assertion

CWE-617

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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