Command injection vulnerability in QNAP VioStar series NVR


VioStar series NVR provided by QNAP Systems, Inc. contains a command injection vulnerability (CVE-2022-27588, CWE-77).

Chuya Hayakawa of 00One, Inc. reported this vulnerability to JPCERT/CC. JPCERT/CC coordinated with the developer.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 9.8 (Critical) [Other]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
Affected Products

QNAP Systems
  • NVR VioStar series


An arbitrary command may be executed by a remote attacker.

[Update the firmware]
Apply the appropriate firmware update according to the information provided by the developer.
The developer has released fixed version below.

* QVR 5.1.6 build 20220401
Vendor Information

QNAP Systems
CWE (What is CWE?)

  1. Command Injection(CWE-77) [Other]
CVE (What is CVE?)

  1. CVE-2022-27588

  1. JVN : JVNVU#95992089
Revision History

  • [2022/05/12]
      Web page was published