CVE-2021-20740: hitachi and nec corporation hitachi virtual file platform and nec storage m series nas gateway which uses hitachi virtual file platform OS Command Injection
Vulnerability summary
CVE-2021-20740 is a high (CVSS 9.0) OS Command Injection vulnerability in hitachi and nec corporation hitachi virtual file platform and nec storage m series nas gateway which uses hitachi virtual file platform. EPSS estimates a 3.11% chance of exploitation in the next 30 days, higher than 87.6% of scored vulnerabilities.
Timeline
- 28-06-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
3.11%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.11% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Nec6 products
- nas_gateway_nh4a_firmware< fos_5.5.3-08\(nec2.5.4a\)
- nas_gateway_nh4b_firmware< fos_6.4.3-08\(nec3.4.2\)
- nas_gateway_nh4c_firmware< fos_6.4.3-08\(nec3.4.2\)
- nas_gateway_nh8a_firmware< fos_5.5.3-08\(nec2.5.4a\)
- nas_gateway_nh8b_firmware< fos_6.4.3-08\(nec3.4.2\)
Hitachi1 product
- virtual_file_platform< 6.4.3-09 | < 5.5.3-09
Hitachi and nec corporation1 product
- hitachi virtual file platform and nec storage m series nas gateway which uses hitachi virtual file platformHitachi 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)
3 vendors · 8 products
References
3 links- www.hitachi.co.jp/products/it/storage-solutions/global/sec_info/2021/2021_306.htmlX Refsource MISCVendor Advisory