CVE-2018-19949
Published: May 24, 2022
Official Description
A command injection vulnerability affecting QNAP NAS File Station could allow remote attackers to run commands.
CISA KEV Advisory
QNAP NAS File Station Command Injection Vulnerability
A command injection vulnerability affecting QNAP NAS File Station could allow remote attackers to run commands.
Apply updates per vendor instructions.
Risk Analysis
A command injection vulnerability in QNAP NAS File Station could allow remote attackers to execute arbitrary commands. The high EPSS score of 0.44166 indicates a significant likelihood of exploitation, and its presence in the KEV catalog confirms it has been actively exploited.
This vulnerability has been actively exploited in the wild and is listed in CISA's Known Exploited Vulnerabilities catalog. The remote nature of the command injection makes it a critical concern.
Apply all available security updates for QNAP NAS File Station. Implement strict input validation and sanitize all user-supplied data to prevent command injection.
Technical Analysis
CVE-2018-19949 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2018-19949 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2018-19949 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1