CVE-2021-20740
Last modified
CVE-2021-20740 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 3.11% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hitachi | Virtual File Platform | < 6.4.3-09 |
| Hitachi | Virtual File Platform | < 5.5.3-09 |
| Nec | Nas Gateway Nh4a Firmware | < fos_5.5.3-08\(nec2.5.4a\) |
| Nec | Nas Gateway Nh8a Firmware | < fos_5.5.3-08\(nec2.5.4a\) |
| Nec | Nas Gateway Nh4b Firmware | < fos_6.4.3-08\(nec3.4.2\) |
| Nec | Nas Gateway Nh8b Firmware | < fos_6.4.3-08\(nec3.4.2\) |
| Nec | Nas Gateway Nh4c Firmware | < fos_6.4.3-08\(nec3.4.2\) |
| Nec | Nas Gateway Nh8c Firmware | < fos_6.4.3-08\(nec3.4.2\) |
References
- https://jpn.nec.com/security-info/secinfo/nv21-011.htmlVendor Advisory
- https://jvn.jp/en/jp/JVN21298724/index.htmlThird Party Advisory
- https://jpn.nec.com/security-info/secinfo/nv21-011.htmlVendor Advisory
- https://jvn.jp/en/jp/JVN21298724/index.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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