CVE-2026-1976CWE-404CWE-476

Free5GC SMF SessionDeletionResponse null pointer dereference

Medium · published February 6, 2026

CVSS v4.0
6.9
EPSS
1%
Percentile
48.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
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
EPSS
0.00611 · 48.6th percentile
Weaknesses
CWE-404 · Improper Resource Shutdown or Release; CWE-476 · NULL Pointer Dereference
Published
2026-02-06T03:02Z
EPSS history
Timeline
  • 06 FEB 03:02Z
    Free5GC SMF SessionDeletionResponse null pointer dereference
    cvelistv5