CVE-2026-1976

MEDIUM

Free5GC <4.1.0 - Null Pointer Dereference

Title source: llm
STIX 2.1

Description

A weakness has been identified in Free5GC up to 4.1.0. Affected is the function SessionDeletionResponse of the component SMF. This manipulation causes null pointer dereference. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. It is suggested to install a patch to address this issue.

Scores

CVSS v3 5.3
EPSS 0.0012
EPSS Percentile 30.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-476 CWE-404
Status published
Products (1)
free5gc/free5gc < 4.1.0
Published Feb 06, 2026
Tracked Since Feb 18, 2026