Home/CVE/A flaw has been found in Free5GC SMF up to 4.1.0. Affected is the function HandlePfcpAssociationReleaseRequest of the fi
CVE

CVE-2026-1682

A flaw has been found in Free5GC SMF up to 4.1.0. Affected is the function HandlePfcpAssociationReleaseRequest of the fi

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.

MEDIUM · CVSS 5.3 EPSS 0.00049
Schedule remediation
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-404Improper Resource Shutdown or Release
CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

1
free5gc<= 4.1.0
⚠

Public Exploits & PoCs

2
pocgithub.com · issues/794github.com
pocgithub.com · 794#issue-3811888505github.com
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD30 Jan 2026 · 02:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/free5gc/free5gc/issues/794#issuecomment-3761063382Issue Tracking
https://github.com/free5gc/smf/
https://github.com/free5gc/smf/pull/188Issue Tracking
https://vuldb.com/?ctiid.343475Permissions RequiredVDB Entry
https://vuldb.com/?id.343475Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.739508Third Party AdvisoryVDB Entry
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