CVE-2021-20740
8.8 · HIGHOverview
CVE-2021-20740 is a high-severity vulnerability affecting hitachi virtual_file_platform. It was published on June 28, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Hitachi Virtual File Platform Versions prior to 5.5.3-09 and Versions prior to 6.4.3-09, and NEC Storage M Series NAS Gateway Nh4a/Nh8a versions prior to FOS 5.5.3-08(NEC2.5.4a) and Nh4b/Nh8b, Nh4c/Nh8c versions prior to FOS 6.4.3-08(NEC3.4.2) allow remote authenticated attackers to execute arbitrary OS commands with root privileges via unspecified vectors.
Remediation
Check the references section for vendor advisories and patches from hitachi. Update virtual_file_platform to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| hitachi | virtual_file_platform | >= 0, < 6.4.3-09 | Affected |
| nec | nas_gateway_nh4a_firmware | >= 0, < fos_5.5.3-08\(nec2.5.4a\) | Affected |
| nec | nas_gateway_nh8a_firmware | >= 0, < fos_5.5.3-08\(nec2.5.4a\) | Affected |
| nec | nas_gateway_nh4b_firmware | >= 0, < fos_6.4.3-08\(nec3.4.2\) | Affected |
| nec | nas_gateway_nh8b_firmware | >= 0, < fos_6.4.3-08\(nec3.4.2\) | Affected |
| nec | nas_gateway_nh4c_firmware | >= 0, < fos_6.4.3-08\(nec3.4.2\) | Affected |
| nec | nas_gateway_nh8c_firmware | >= 0, < fos_6.4.3-08\(nec3.4.2\) | Affected |
References
Frequently Asked Questions
What is CVE-2021-20740?
CVE-2021-20740 is a high-severity vulnerability affecting hitachi virtual_file_platform. It was published on June 28, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2021-20740?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-20740?
Check the references section for vendor advisories and patches from hitachi. Update virtual_file_platform to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-20740?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-20740 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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