High severity · published Aug 10, 2025
CVE-2025-8804
Open5GS AMF ngap_build_downlink_nas_transport assertion
7.5
CVSS
0.8%
EPSS
No
On KEV
Description
A vulnerability was found in Open5GS up to 2.7.5. Affected by this vulnerability is the function ngap_build_downlink_nas_transport of the component AMF. The manipulation leads to reachable assertion. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.7.6 is able to address this issue. The identifier of the patch is bca0a7b6e01d254f4223b83831162566d4626428. It is recommended to upgrade the affected component.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Open5GS ·
2.7.0; 2.7.1; 2.7.2; 2.7.3; 2.7.4; 2.7.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-8804
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-8804
github.com
https://github.com/ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-8804
Patch
https://github.com/open5gs/open5gs/commit/bca0a7b6e01d254f4223b83831162566d4626428
Issue Tracking
https://github.com/open5gs/open5gs/issues/3950
Issue Tracking
https://github.com/open5gs/open5gs/issues/3950#issuecomment-3034693457
Release Notes
https://github.com/open5gs/open5gs/releases/tag/v2.7.6
Exploit
https://github.com/user-attachments/files/21030801/newdata_for_ngap.zip
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