What’s Vulnerable › Vulnerabilities

CVE-2025-63679

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-12 · updated 2026-06-17
• Weakness: CWE-120

Description

free5gc v4.1.0 and before is vulnerable to Buffer Overflow. When AMF receives an UplinkRANConfigurationTransfer NGAP message from a gNB, the AMF process crashes.

Affected products

• free5gc: through 4.1.0

References

• https://gist.github.com/DDGod2025/5483d94b028d7a0c111ca23844e8a94d
• https://github.com/free5gc/free5gc/issues/725

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