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TI-2021-16251 Aliases CVE-2021-38679GHSA-5hf8-wqqm-3jx5

Improper Authentication in Kazoo Server

Priority MEDIUM 43CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

An improper authentication vulnerability has been reported to affect QNAP NAS running Kazoo Server. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of Kazoo Server: Kazoo Server 4.11.22 and later

Why it matters now

EPSS 0.00743 54th percentileScored 2026-11-07
Fix Fixed Kazoo Server (QNAP Systems Inc.): 4.11.22

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
QNAPKazoo Serverbefore 4.11.224.11.22Patch availableCNA
  • Kazoo Server VendorQNAP Affected before 4.11.22 Fixed in 4.11.22 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:qnap:kazoo_server:*:*:*:*:*:*:*:*before 4.11.22VulnerableQNAP
  • cpe:2.3:a:qnap:kazoo_server:*:*:*:*:*:*:*:* Versions before 4.11.22 Vulnerable ·QNAP

Remediation

  • Fix · CNA Kazoo Server (QNAP Systems Inc.) Fixed in 4.11.22

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-38679
  2. 2026-10-03 Alias added: GHSA-5hf8-wqqm-3jx5

References

Advisory 1

Sources

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