High severity · published Aug 10, 2025
CVE-2025-8799
Open5GS AMF npcf-build.c amf_nsmf_pdusession_build_create_sm_context denial of service
7.5
CVSS
0.8%
EPSS
No
On KEV
Description
A vulnerability was identified in Open5GS up to 2.7.5. Affected by this vulnerability is the function amf_npcf_am_policy_control_build_create/amf_nsmf_pdusession_build_create_sm_context of the file src/amf/npcf-build.c of the component AMF. The manipulation leads to denial of service. 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 patch is named cf63dd63197bf61a4b041aa364ba6a6199ab15e4. 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 55% 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-2025-8799
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-8799
github.com
https://github.com/ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-8799
Patch
https://github.com/open5gs/open5gs/commit/cf63dd63197bf61a4b041aa364ba6a6199ab15e4
Issue Tracking
https://github.com/open5gs/open5gs/issues/3979
Issue Tracking
https://github.com/open5gs/open5gs/issues/3979#issuecomment-3054369376
Release Notes
https://github.com/open5gs/open5gs/releases/tag/v2.7.6
Exploit
https://github.com/user-attachments/files/21104682/5g_amf_crash_ran.zip
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