CVE-2023-47565
QNAP VioStor NVR OS Command Injection Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 11 January 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
An OS command injection vulnerability has been found to affect legacy QNAP VioStor NVR models running QVR Firmware 4.x. If exploited, the vulnerability could allow authenticated users to execute commands via a network. We have already fixed the vulnerability in the following versions: QVR Firmware 5.0.0 and later
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 73.28% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 21 December 2023 · due 11 January 2024
- Weakness
- CWE-78
- Affected
- qnap/qvr firmware
- Source
- security@qnapsecurity.com.tw
EPSS 73.3% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://www.qnap.com/en/security-advisory/qsa-23-48 ; https://nvd.nist.gov/vuln/detail/CVE-2023-47565
References
- https://www.qnap.com/en/security-advisory/qsa-23-48Vendor Advisory
- https://www.qnap.com/en/security-advisory/qsa-23-48Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-47565US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.