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TI-2022-21438 Aliases CVE-2022-43677GHSA-59hj-62f5-fgmc

In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an…

Priority LOW 26Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

EPSS 0.00757 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—github.com/free5gc/free5gc (Go)up to 3.2.1—No fix listedGHSA-59hj-62f5-fgmc
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • github.com/free5gc/free5gc (Go) Vendor— Affected up to 3.2.1 Fixed in — No fix listed GHSA-59hj-62f5-fgmc

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:free5gc:free5gc:3.2.1:*:*:*:*:*:*:*3.2.1Vulnerablefree5gc
  • cpe:2.3:a:free5gc:free5gc:3.2.1:*:*:*:*:*:*:* Versions 3.2.1 Vulnerable ·free5gc

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-43677
  2. 2026-10-03 Alias added: GHSA-59hj-62f5-fgmc

References

Exploit 1

Advisory 1

Other 3

  • TI-2026-32298 Incorrect authorization in free5gc CVSS 3.1CRITICAL 10.0
  • TI-2026-32297 free5GC: SMF UPI management interface lacks auth middleware; unauthenticated topology read/write requests reach handlers CVSS 3.1CRITICAL 10.0
  • TI-2026-32295 free5GC: NEF nnef-oam route group is unauthenticated; no-token requests reach the OAM handler CVSS 3.1CRITICAL 10.0
  • TI-2025-39412 free5gc v4.1.0 and before is vulnerable to Buffer Overflow. CVSS 3.1CRITICAL 9.8
  • TI-2026-32294 Missing authorization in free5gc CVSS 3.1CRITICAL 9.4
  • TI-2026-32283 Missing authorization in free5gc CVSS 3.1CRITICAL 9.4
See all 58 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences