What’s Vulnerable › Vulnerabilities

CVE-2026-1682: Free5GC SMF PFCP UDP Endpoint handler.go HandlePfcpAssociationReleaseRequest null pointer dereference

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-30 · updated 2026-06-17
• Weakness: CWE-404

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.

Affected products

• free5gc: through 4.1.0

References

• https://github.com/free5gc/free5gc/issues/794
• https://github.com/free5gc/free5gc/issues/794#issue-3811888505
• https://github.com/free5gc/free5gc/issues/794#issuecomment-3761063382
• https://github.com/free5gc/smf/
• https://github.com/free5gc/smf/pull/188
• https://vuldb.com/?ctiid.343475
• https://vuldb.com/?id.343475
• https://vuldb.com/?submit.739508

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