A flaw has been found in Free5GC SMF up to 4.1.0. Affected is the function HandlePfcpAssociationReleaseRequest of the file internal/pfcp/handler/handler.go of the component PFCP UDP Endpoint. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been published and may be used. A patch should be applied to remediate this issue.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00077.

Exploitation poc

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Free5GC SMF affected
Version Status Constraints
4.0 affected —
4.1.0 affected —

Configuration 1 [-]

cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*

No data.

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Vendors Products
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Project Subscriptions

Vendors Products
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Smf Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/free5gc/free5gc/issues/794 cve-icon cve-icon
https://github.com/free5gc/free5gc/issues/794#issue-3811888505 cve-icon cve-icon
https://github.com/free5gc/free5gc/issues/794#issuecomment-3761063382 cve-icon cve-icon
https://github.com/free5gc/smf/pull/188 cve-icon cve-icon
https://vuldb.com/?ctiid.343475 cve-icon cve-icon
https://vuldb.com/?id.343475 cve-icon cve-icon
https://vuldb.com/?submit.739508 cve-icon cve-icon
History

Tue, 17 Feb 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Free5gc free5gc
CPEs cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*
Vendors & Products Free5gc free5gc

Tue, 03 Feb 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Free5gc
Free5gc smf
Vendors & Products Free5gc
Free5gc smf

Fri, 30 Jan 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 30 Jan 2026 14:15:00 +0000

Type Values Removed Values Added
Description A flaw has been found in Free5GC SMF up to 4.1.0. Affected is the function HandlePfcpAssociationReleaseRequest of the file internal/pfcp/handler/handler.go of the component PFCP UDP Endpoint. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been published and may be used. A patch should be applied to remediate this issue.
Title Free5GC SMF PFCP UDP Endpoint handler.go HandlePfcpAssociationReleaseRequest null pointer dereference
Weaknesses CWE-404
CWE-476
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 5.3, 'vector': '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'}

cvssV3_1

{'score': 5.3, 'vector': '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'}

cvssV4_0

{'score': 6.9, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-01-30T14:50:52.750Z

Reserved: 2026-01-30T07:35:31.971Z

Link: CVE-2026-1682

cve-icon Vulnrichment

Updated: 2026-01-30T14:50:35.372Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-30T14:16:07.100

Modified: 2026-02-17T19:24:43.587

Link: CVE-2026-1682

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-02T09:27:47Z

Weaknesses