CVE-2025-15687
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk46th percentile - higher than 46% of all known CVEs
Summary
A security flaw in Open5GS up to 2.7.6 affects the smf_gx_cca_cb function of the SMF Diameter Gx Credit-Control-Answer Handler, leading to denial of service. The attack can be launched remotely, and the exploit has been publicly released.
Risk Assessment
A remote attacker can cause unavailability of network services, disrupting telecommunications infrastructure.
Recommendation
Upgrade Open5GS to version 2.7.7 or later, which includes the fix identified as f23d7a5e959acd8f37b925dc29b85f26b7d391cb.
Original NVD description (English source)
A security flaw has been discovered in Open5GS up to 2.7.6. Impacted is the function smf_gx_cca_cb of the component SMF Diameter Gx Credit-Control-Answer Handler. The manipulation results in denial of service. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 2.7.7 is recommended to address this issue. The patch is identified as f23d7a5e959acd8f37b925dc29b85f26b7d391cb. Upgrading the affected component is advised.