CVE-2026-1974: Free5GC SMF datapath.go ResolveNodeIdToIp denial of service

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-02-06 · updated 2026-06-17
Weakness: CWE-404

Description

A vulnerability was identified in Free5GC up to 4.1.0. This affects the function ResolveNodeIdToIp of the file internal/sbi/processor/datapath.go of the component SMF. The manipulation leads to denial of service. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. It is recommended to apply a patch to fix this issue.

Affected products

free5gc: through 4.1.0

References

https://github.com/free5gc/free5gc/
https://github.com/free5gc/free5gc/issues/816
https://github.com/free5gc/free5gc/issues/816#issue-3832055233
https://github.com/free5gc/smf/pull/189
https://vuldb.com/?ctiid.344496
https://vuldb.com/?id.344496
https://vuldb.com/?submit.743237

Get alerted when CVE-2026-1974 or the next vulnerability affects your stack