CVE-2023-46324: FREE5GC Udm

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

pkg/suci/suci.go in free5GC udm before 1.2.0, when Go before 1.19 is used, allows an Invalid Curve Attack because it may compute a shared secret via an uncompressed public key that has not been validated. An attacker can send arbitrary SUCIs to the UDM, which tries to decrypt them via both its private key and the attacker's public key.

Affected products

• FREE5GC Udm: before 1.2.0 (fixed in 1.2.0)

Published 2023-10-23. Last modified 2026-06-17.