vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2021-20706

HIGH
7.5
CVSS Score
Published: November 2, 2021 at 11:30 PM UTC
Updated: June 17, 2026 at 03:34 AM UTC
4 products affected across 1 vendorExpresscluster XExpresscluster X SingleserversafeCLUSTERPRO X

Using CLUSTERPRO X by NEC Corporation?

Get instant alerts when new vulnerabilities affect CLUSTERPRO X - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

Improper input validation vulnerability in the WebManager CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote file upload via network.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISC
Source: [email protected]
https://jpn.nec.com/security-info/secinfo/nv21-015_en.html

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card