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TI-2021-19812 Aliases CVE-2021-44081GHSA-j2w7-jvqq-8rgp

A buffer overflow vulnerability exists in the AMF of open5gs 2.1.4.

Priority LOW 35CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A buffer overflow vulnerability exists in the AMF of open5gs 2.1.4. When the length of MSIN in Supi exceeds 24 characters, it leads to AMF denial of service.

Why it matters now

EPSS 0.01048 64th 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
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:open5gs:open5gs:2.1.4:*:*:*:*:*:*:*2.1.4VulnerableOpen5GS
  • cpe:2.3:a:open5gs:open5gs:2.1.4:*:*:*:*:*:*:* Versions 2.1.4 Vulnerable ·Open5GS

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-44081
  2. 2026-10-03 Alias added: GHSA-j2w7-jvqq-8rgp

References

Exploit 1

  • TI-2024-26883 open5gs v2.6.4 is vulnerable to Buffer Overflow. CVSS 3.1CRITICAL 9.8
  • TI-2024-26882 Open5GS v2.6.4 is vulnerable to Buffer Overflow. CVSS 3.1CRITICAL 9.8
  • TI-2024-22649 Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a… CVSS 3.1HIGH 8.6
  • TI-2023-18757 Open5GS MME versions <= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport`… CVSS 3.1HIGH 8.6
  • TI-2023-18755 Open5GS MME version <= 2.6.4 contains an assertion that can be remotely triggered via a… CVSS 3.1HIGH 8.6
  • TI-2023-18754 Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a… CVSS 3.1HIGH 8.6
See all 153 →

Sources

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