CVE-2022-43677

5.5 mediumEPSS 0.8%

Medium (5.5) in free5gc free5gc. EPSS 0.8% chance of exploitation in the next 30 days.

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.

Severity

5.5 medium

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
Published: 2022-10-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-59hj-62f5-fgmc	Go	github.com/free5gc/free5gc	<=3.2.1	no fix published
GO-2022-1083	Go	github.com/free5gc/aper	all versions	no fix published