CVE-2026-1976

medium

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.

References

https://vuldb.com/?submit.743239

https://vuldb.com/?id.344498

https://vuldb.com/?ctiid.344498

https://github.com/free5gc/smf/pull/189

https://github.com/free5gc/free5gc/issues/817#issue-3832188092

https://github.com/free5gc/free5gc/issues/817

https://github.com/free5gc/free5gc/

Details

Source: Mitre, NVD

Published: 2026-02-06

Updated: 2026-02-06

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Severity: Medium

CVSS v4

Base Score: 6.9

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

Severity: Medium

EPSS

EPSS: 0.00047