CVE-2026-82588

Open5GS Transfer Endpoint namf-handler.c null pointer dereference

State: Published
Severity: 5.3 Medium
Published: Aug 30, 2026
Updated: Sep 1, 2026
Reserved: Aug 30, 2026

Description

A vulnerability was identified in Open5GS up to 2.7.7. This issue affects some unknown processing of the file src/amf/namf-handler.c of the component Transfer Endpoint. Such manipulation leads to null pointer dereference. The attack can be launched remotely. Upgrading to version 2.8.0 is capable of addressing this issue. The name of the patch is abf8a836564b966b5141110fc25ed413c4f17522. Upgrading the affected component is advised.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X	VulDB
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C	VulDB
3.0	4.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C	VulDB
2.0	4.0 Medium	AV:N/AC:L/Au:S/C:N/I:N/A:P/E:ND/RL:OF/RC:C	VulDB

Weaknesses

CWE-476 NULL Pointer Dereference
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 2.7.6Affected 2.7.7Affected 2.8.0Not affected

References

VDB-397083 | Open5GS Transfer Endpoint namf-handler.c null pointer dereferencevdb-entry
VDB-397083 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-82588 | CVE Analysis and Reportthird-party-advisory
Submit #891891 | Open5GS AMF v2.7.7 Denial of Servicethird-party-advisory
https://github.com/open5gs/open5gs/issues/4397issue-tracking
https://github.com/open5gs/open5gs/commit/abf8a836564b966b5141110fc25ed413c4f17522patch
https://github.com/open5gs/open5gs/releases/tag/v2.8.0patch
https://github.com/open5gs/open5gs/product

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