CVE-2026-1973
Free5GC SMF establishPfcpSession null pointer dereference
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-476 CWE-404 |
| Vendor | n/a |
| Product | free5gc |
| Published | Feb 6, 2026 |
| Last Updated | Feb 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
n/a / Free5GC
4.0 4.1.0
References
vuldb.com: https://vuldb.com/?id.344495 vuldb.com: https://vuldb.com/?ctiid.344495 vuldb.com: https://vuldb.com/?submit.743236 github.com: https://github.com/free5gc/free5gc/issues/815 github.com: https://github.com/free5gc/free5gc/issues/815#issue-3832032062 github.com: https://github.com/free5gc/smf/pull/189 github.com: https://github.com/free5gc/free5gc/
Credits
🔍 ZiyuLin (VulDB User)