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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

CVSS: 9.0v2.0HighModified
Published 28-06-2021Last modified 03-08-2024

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.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.0/10
010
High · v2.0 (NVD)
EPSS score
3.11%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-06-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last 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 versions

EPSS 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

19-09-202619-10-2026
EPSS score
3.11%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Nec6 products
Hitachi1 product
Hitachi and nec corporation1 product

3 vendors · 8 products

References

3 links