CVE-2026-1973 MEDIUM

CVE-2026-1973: Free5GC SMF establishPfcpSession null pointer dereference

Vendor N/A
Product Free5GC
Weakness CWE-476
Published February 6, 2026
Last update February 23, 2026

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 6, 2026 CVE published
February 23, 2026 Record updated