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CVE-2026-1682

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Date: January 30, 2026

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.

Severity Score

Related Resources (9)

https://github.com/free5gc/free5gc/issues/794
https://github.com/free5gc/free5gc/issues/794#issuecomment-3761063382
https://vuldb.com/?submit.739508
https://vuldb.com/?id.343475
https://vuldb.com/?ctiid.343475
https://github.com/free5gc/smf/pull/188
https://nvd.nist.gov/vuln/detail/CVE-2026-1682
https://github.com/free5gc/free5gc/issues/794#issue-3811888505
https://www.mend.io/vulnerability-database/CVE-2026-1682

Severity Score

Weakness Type (CWE)

Improper Resource Shutdown or Release

CWE-404

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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