CVE-2022-43677

medium

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.

References

https://www.trendmicro.com/en_us/research/23/j/asn1-vulnerabilities-in-5g-cores.html

https://github.com/free5gc/free5gc/issues/402

Details

Source: Mitre, NVD

Published: 2022-10-24

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00023