Golang
CVE-2026-1682
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
Free5GC SMF versions up to 4.1.0 contain a null pointer dereference in the PFCP UDP endpoint handler that can be triggered remotely without authentication, leading to denial of service. Public exploit code exists for this vulnerability, and no patch is currently available. An attacker can crash the session management function by sending specially crafted PFCP association release requests.
Technical ContextAI
Classified as CWE-404 (Improper Resource Shutdown or Release). Affects Free5Gc. 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.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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Same weakness CWE-404 – Improper Resource Shutdown or Release
View allSame technique Null Pointer Dereference
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External POC / Exploit Code
Leaving vuln.today