CVE-2025-5520
MEDIUM EPSS 50.1%
Published Jun 3, 20251y ago · Modified Jun 17, 20261w ago
6.9 CVSS 4.0
Published Jun 3, 2025 1y ago
Last Modified Jun 17, 2026 1w ago
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
50.1% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available
Weaknesses 1
CWE-617
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| open5gs | open5gs | * | ≥2.7.0 – ≤2.7.3 |
References 7
- github.com https://github.com/open5gs/open5gs/commit/9f5d133657850e6167231527514ee1364d37a884
- github.com https://github.com/open5gs/open5gs/issues/3910
- github.com https://github.com/open5gs/open5gs/issues/3910#issuecomment-2926719317
- github.com https://github.com/user-attachments/files/20362243/Problematic.handover.required.process.zip
- vuldb.com https://vuldb.com/?ctiid.310956
- vuldb.com https://vuldb.com/?id.310956
- vuldb.com https://vuldb.com/?submit.582269
Remediation
- github.com https://github.com/open5gs/open5gs/commit/9f5d133657850e6167231527514ee1364d37a884