CVE-2025-8799

Open5GS AMF npcf-build.c amf_nsmf_pdusession_build_create_sm_context denial of service

State: Published
Severity: 6.9 Medium
Published: Aug 10, 2025
Updated: Aug 15, 2025
Reserved: Aug 9, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	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:P	VulDB
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C	VulDB
3.0	5.3 Medium	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C	VulDB
2.0	5.0 Medium	AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-404 Denial of Service

Affected Products

Product	Versions
Open5GSn/a	2.7.0Affected 2.7.1Affected 2.7.2Affected 2.7.3Affected 2.7.4Affected 2.7.5Affected 2.7.6Not affected

References

VDB-319327 | Open5GS AMF npcf-build.c amf_nsmf_pdusession_build_create_sm_context denial of servicevdb-entrytechnical-description
VDB-319327 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
Submit #626112 | Open5GS <=v2.7.5 Denail of Servicethird-party-advisory
https://github.com/open5gs/open5gs/issues/3979issue-tracking
https://github.com/open5gs/open5gs/issues/3979#issuecomment-3054369376issue-tracking
https://github.com/user-attachments/files/21104682/5g_amf_crash_ran.zipexploit
https://github.com/open5gs/open5gs/commit/cf63dd63197bf61a4b041aa364ba6a6199ab15e4patch
https://github.com/open5gs/open5gs/releases/tag/v2.7.6patch
https://github.com/ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-8799related

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