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CVE-2026-1976

Free5GC SMF SessionDeletionResponse null pointer dereference

CVSS 6.9 MEDIUMEPSS 0.5%CWE-404CWE-476
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.9EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
06 Feb 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
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
Affected products
n/a · Free5GC

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