CVE-2020-2509
Published: April 11, 2022
Official Description
QNAP NAS devices contain a command injection vulnerability which could allow attackers to perform remote code execution.
CISA KEV Advisory
QNAP Network-Attached Storage (NAS) Command Injection Vulnerability
QNAP NAS devices contain a command injection vulnerability which could allow attackers to perform remote code execution.
Apply updates per vendor instructions.
Risk Analysis
This command injection vulnerability in QNAP NAS devices allows attackers to execute arbitrary code remotely. With an EPSS score of 0.84994, there is a very high likelihood of exploitation, and its inclusion in CISA's KEV catalog confirms active exploitation. This represents a critical and urgent risk to affected NAS systems.
This vulnerability is actively being exploited in the wild and is included in CISA's KEV catalog. It is remotely exploitable, allowing attackers to compromise affected QNAP NAS devices.
Administrators should immediately apply the latest security updates and patches provided by QNAP for their NAS devices. Ensure network segmentation and restrict direct internet exposure for NAS systems.
Technical Analysis
CVE-2020-2509 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-2020-2509 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-2020-2509 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