CVE-2025-5520

MEDIUM

Open5GS <2.7.3 - Reachable Assertion

Title source: llm
STIX 2.1

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.

References (7)

Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry technical-description
https://vuldb.com/?id.310956
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.310956
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.582269
Exploit, Issue Tracking issue-tracking
https://github.com/open5gs/open5gs/issues/3910

Scores

CVSS v3 5.3
EPSS 0.0075
EPSS Percentile 49.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-617
Status published
Products (1)
open5gs/open5gs 2.7.0 - 2.7.3
Published Jun 03, 2025
Tracked Since Feb 18, 2026