CVE-2026-1976

MEDIUM 5.3

Free5GC SMF SessionDeletionResponse null pointer dereference

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

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

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.344498 vuldb.com: https://vuldb.com/?ctiid.344498 vuldb.com: https://vuldb.com/?submit.743239 github.com: https://github.com/free5gc/free5gc/issues/817 github.com: https://github.com/free5gc/free5gc/issues/817#issue-3832188092 github.com: https://github.com/free5gc/smf/pull/189 github.com: https://github.com/free5gc/free5gc/

Credits

🔍 LinZiyu (VulDB User)