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CVE-2026-1976

MEDIUM

5.3

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.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/6/2026

Last Modified2/9/2026

Sourcenvd

Honeypot Sightings0

Affected Products

free5gc:free5gc

Weaknesses (CWE)

CWE-404CWE-476CWE-476

References

https://github.com/free5gc/free5gc/(cna@vuldb.com)

https://github.com/free5gc/free5gc/issues/817(cna@vuldb.com)

https://github.com/free5gc/free5gc/issues/817#issue-3832188092(cna@vuldb.com)

https://github.com/free5gc/smf/pull/189(cna@vuldb.com)

https://vuldb.com/?ctiid.344498(cna@vuldb.com)

https://vuldb.com/?id.344498(cna@vuldb.com)

https://vuldb.com/?submit.743239(cna@vuldb.com)

IOC Correlations

No correlations recorded

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