Sunday, October 18, 2026

Multiple QNAP Flaws Let attackers to Access and Read Sensitive Data

NAS device maker QNAP released software updates for its network-attached storage (NAS) products on Friday. While this updated software package is focused on patching multiple security flaws. All these flaws could enable the threat actors to get access and steal sensitive data.

Among all the detected vulnerabilities, there is one that could allow the threat actors to take control of a compromised system, and it’s tracked as “CVE-2022-27588” with a CVSS score of 9.8.

While the QVR 5.1.6 build 20220401 and later versions are said to have patched this vulnerability. In the event of exploitation of this serious vulnerability, a remote attacker would be able to execute arbitrary commands on a QVR system that was vulnerable.

Among the video surveillance solutions QNAP offers, QVR is one of them. QVR is a video surveillance system that runs on QNAP devices and is not dependent on any additional software.

Flaws Detected

In total, the cybersecurity experts have detected 9 vulnerabilities and here below we have listed all of them:-

  • CVE ID: CVE-2022-27588
  • CVSS score: 9.8
  • Summary: A vulnerability has been reported to affect QNAP VS Series NVR running QVR. If exploited, this vulnerability allows remote attackers to run arbitrary commands.
  • CVE ID: CVE-2021-44051
  • CVSS score: 8.8
  • Summary: A command injection vulnerability in QNAP devices running QTS, QuTS hero, and QuTScloud, resulting in arbitrary command execution.
  • CVE ID: CVE-2021-38693
  • CVSS score: 5.3
  • Summary: A path traversal vulnerability in thttpd affecting QNAP devices running QTS, QuTS hero, QuTScloud, and QVR Pro Appliance, leading to information disclosure.
  • CVE ID: CVE-2021-44052
  • CVSS score: 6.5
  • Summary: An improper link resolution before file access (“link following”) vulnerability in QNAP devices running QTS, QuTS hero, and QuTScloud, allowing attackers to read/write files in arbitrary file locations.
  • CVE ID: CVE-2021-44053
  • CVSS score: 5.7
  • Summary: A cross-site scripting (XSS) vulnerability in QNAP devices running QTS, QuTS hero, and QuTScloud, leading to code injection.
  • CVE ID: CVE-2021-44054
  • CVSS score: 4.3
  • Summary: An open redirect vulnerability in QNAP devices running QTS, QuTS hero, and QuTScloud, making it possible to redirect users to rogue web pages.
  • CVE ID: CVE-2021-44055
  • CVSS score: 5.3
  • Summary: A missing authorization vulnerability in QNAP devices running Video Station, allowing attackers to access data or perform unauthorized actions.
  • CVE ID: CVE-2021-44056
  • CVSS score: 7.1
  • Summary: An improper authentication vulnerability in QNAP devices running Video Station, leading to system compromise.
  • CVE ID: CVE-2021-44057
  • CVSS score: 7.1
  • Summary: An improper authentication vulnerability in QNAP devices running Photo Station, leading to system compromise.

While the advisory published by QNAP clearly states:-

“A vulnerability has been reported to affect QNAP VS Series NVR running QVR. If exploited, this vulnerability allows remote attackers to run arbitrary commands.”

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Gurubaran
Gurubaran
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

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