What’s Vulnerable › Vulnerabilities

CVE-2022-43677

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-10-24 · updated 2026-06-17

Description

In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in aper.GetBitString.

Affected products

• free5gc: 3.2.1

References

• https://github.com/free5gc/free5gc/issues/402
• https://www.trendmicro.com/en_us/research/23/j/asn1-vulnerabilities-in-5g-cores.html
• https://github.com/free5gc/free5gc/issues/402
• https://www.trendmicro.com/en_us/research/23/j/asn1-vulnerabilities-in-5g-cores.html

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