Unrated severityNVD Advisory· Published Feb 6, 2026· Updated Feb 23, 2026

Free5GC SMF establishPfcpSession null pointer dereference

CVE-2026-1973

Description

A vulnerability was determined in Free5GC up to 4.1.0. The impacted element is the function establishPfcpSession of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. It is best practice to apply a patch to resolve this issue.

Affected products

Free5gc/Free5gcv52 versions
cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*range: 4.0
- (no CPE)range: <=4.1.0

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

github.com/free5gc/smf/pull/189mitreissue-trackingpatch
github.com/free5gc/free5gc/issues/815mitreexploitissue-tracking
vuldb.commitrethird-party-advisory
github.com/free5gc/free5gc/issues/815mitreissue-tracking
vuldb.commitresignaturepermissions-required
vuldb.commitrevdb-entrytechnical-description

News mentions

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